Holsters that fit the Glock 21 Gen4 MOS
229 holsters from 25 makers. 0 confirmed by the maker, 0 listed with loose wording, 229 matched through a base model. Last verified Oct 16, 2026.
- 229holsters
- 25makers
- 0maker confirmed
- 0listed
- 229likely
Likely fit
$47.99
ShapeShift® 4.0 IWB Expansion Pack for Glock
Alien Gear Holsters
“ShapeShift® 4.0 IWB Expansion Pack for Glock | Glock 21 / Right / Black”
Likely fit
$69.99
ShapeShift® 4.0 IWB Holster for Glock
Alien Gear Holsters
“ShapeShift® 4.0 IWB Holster for Glock | Glock 21 (Gen 1-4) / Right / Black”
Likely fit
$47.99
ShapeShift® Appendix Expansion Pack for Glock
Alien Gear Holsters
“ShapeShift® Appendix Expansion Pack for Glock | Glock 21 / Right / Black”
Likely fit
$69.99
ShapeShift® Appendix Holster for Glock
Alien Gear Holsters
“ShapeShift® Appendix Holster for Glock | Glock 21 (Gen 1-4) / Right / Black”
Likely fit
$109.99
ShapeShift® Core Carry Pack for Glock Handguns
Alien Gear Holsters
“ShapeShift® Core Carry Pack for Glock Handguns | Glock 21 (Gen 1-4) / Right”
Likely fit
$3.99
ShapeShift® Holster Trigger Guard for Glock
Alien Gear Holsters
“ShapeShift® Holster Trigger Guard for Glock | Glock 21 (Gen 1-4) / Right / Black”
Likely fit
$64.99
ShapeShift® Hook & Loop Holster for Glock Handguns
Alien Gear Holsters
“ShapeShift® Hook & Loop Holster for Glock Handguns | Glock 21 / Right / Black”
Likely fit
$69.99
ShapeShift® OWB Paddle Holster for Glock Handguns
Alien Gear Holsters
“ShapeShift® OWB Paddle Holster for Glock Handguns | Glock 21 (Gen 1-4) / Right / Black”
Likely fit
$47.99
ShapeShift® OWB Slide Expansion for Glock
Alien Gear Holsters
“ShapeShift® OWB Slide Expansion for Glock | Glock 21 / Right / Black”
Likely fit
$69.99
ShapeShift® OWB Slide Holster for Glock Handguns
Alien Gear Holsters
“ShapeShift® OWB Slide Holster for Glock Handguns | Glock 21 (Gen 1-4) / Right / Black”
Likely fit
$49.99
ShapeShift® Shell for Glock Handguns
Alien Gear Holsters
“ShapeShift® Shell for Glock Handguns | Glock 21 / Right / Black”
Likely fit
$144.99
ShapeShift® Swivel Drop Leg Holster for Glock Handguns
Alien Gear Holsters
“ShapeShift® Swivel Drop Leg Holster for Glock Handguns | Glock 21 (Gen 1-4) / Right / Black”
Likely fit
$56.99
IWB Holster (Choose Options)
Allegiant Holsters
“IWB Holster (Choose Options) | Glock 21 / DCC HLR Clips- Dual (New Style Gray)”
Likely fit
$71.99
Likely fit
$75.49
OWB Pancake Holster (Choose Options)
Allegiant Holsters
“OWB Pancake Holster (Choose Options) | Glock 21”
Likely fit
$72.99
Range Ready Holster
Allegiant Holsters
“Range Ready Holster | Glock 21 / No (Holster without attachment)”
Likely fit
$78.90
EDC Velcro Bag Holster for Glock 20/21 (Gen3 & 4)
Black Arch Holsters
“EDC Velcro Bag Holster for Glock 20/21 (Gen3 & 4)”
Likely fit
$59.95
Rev-Con™ IWB for Glock 20/21 (Gen3 & 4)
Black Arch Holsters
“Rev-Con™ IWB for Glock 20/21 (Gen3 & 4)”
Likely fit
$52.99
Likely fit
$64.99
Pro IDPA Competition Holster for Glock 20, 21 (Gen 4)
Black Scorpion Gear
“Pro IDPA Competition Holster for Glock 20, 21 (Gen 4)”
Likely fit
$67.99
Quick Release IDPA Holster for Glock 20, 21
Black Scorpion Gear
“Quick Release IDPA Holster for Glock 20, 21”
Likely fit
$67.99
Quick Release Paddle Holster for Glock 20, 21
Black Scorpion Gear
“Quick Release Paddle Holster for Glock 20, 21”
Likely fit
$54.95
SERPA Close Quarters Concealment Holster
Blackhawk
“SERPA Close Quarters Concealment Holster | Glock 20 / 21 (non Gen5) / 37; S&W M&P / M2.0 .45 CT / Right”
Likely fit
$119.95
Serpa Level 3 Duty Holster
Blackhawk
“Serpa Level 3 Duty Holster | Glock 20/21 (non Gen5) / 37/38 / Right”
Likely fit
$44.95
SERPA Sportster Holster
Blackhawk
“SERPA Sportster Holster | Glock 20 / 21 (non Gen5) / 37; S&W M&P / M2.0 .45 / Left”
Likely fit
$84.95
T-Series Level 2 Compact Holster
Blackhawk
“T-Series Level 2 Compact Holster | Glock 20 / 21 / 37 / 38 / Right”
Likely fit
$169.95
T-Series Level 2 Duty Light Bearing Holster
Blackhawk
“T-Series Level 2 Duty Light Bearing Holster | Glock 20/21 Gen3/4, Glock 22/23 Gen5, HK VP9/VP9-B with Streamlight TLR-1/2 / Left”
Likely fit
$169.95
T-Series Level 2 Duty Light-Bearing Red Dot Sight (RDS) Holster
Blackhawk
“T-Series Level 2 Duty Light-Bearing Red Dot Sight (RDS) Holster | Glock 20/21 Gen3/4, Glock 22/23 Gen5, HK VP9/VP9-B with Streamlight TLR-1/2 / Left”
Likely fit
$189.95
T-Series Level 3 Duty Light-Bearing Holster
Blackhawk
“T-Series Level 3 Duty Light-Bearing Holster | Glock 20/21 Gen3/4, Glock 22/23 Gen5, HK VP9/VP9-B W/ Streamlight TLR-1/2 / Left”
Likely fit
$184.95
T-Series Level 3 Light Bearing Holster
Blackhawk
“T-Series Level 3 Light Bearing Holster | Glock 20/21 Gen3/4, Glock 22/23 Gen5, Hk Vp9/Vp9-B W/ Streamlight Tlr-1/2 / Right”
Likely fit
$44.99
Likely fit
$69.99
Total Eclipse 2.0 IWB / OWB Holster
Blade-Tech
“Total Eclipse 2.0 IWB / OWB Holster | Glock - 20/21 (Gen 3-5) / No Light / No - Holster Only”
Likely fit
$159.99
DENALI Chest Mounted Kydex Holster System | CUSTOM | C&G Holsters
C&G Holsters
“DENALI Chest Mounted Kydex Holster System | CUSTOM | C&G Holsters | Right Hand / GLOCK 20/21/29/30 / Small-Large (Shirt Size) Black”
Likely fit
$159.99
DENALI Chest Mounted Kydex Holster System | QUICKSHIP | C&G Holsters
C&G Holsters
“DENALI Chest Mounted Kydex Holster System | QUICKSHIP | C&G Holsters | Right Hand / Glock 20/21/29/30 / Small-Large”
Likely fit
$69.99
GLOCK 20/21 | IWB COVERT/ALPHA Kydex Holster | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21 | IWB COVERT/ALPHA Kydex Holster | CUSTOM | C&G Holsters”
Likely fit
$69.99
GLOCK 20/21 | IWB COVERT/ALPHA Kydex Holster | QUICKSHIP | C&G Holsters
C&G Holsters
“GLOCK 20/21 | IWB COVERT/ALPHA Kydex Holster | QUICKSHIP | C&G Holsters”
Likely fit
$79.99
GLOCK 20/21 | OWB COVERT Kydex Holster | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21 | OWB COVERT Kydex Holster | CUSTOM | C&G Holsters”
Likely fit
$79.99
GLOCK 20/21 | OWB COVERT Kydex Holster | QUICKSHIP | C&G Holsters
C&G Holsters
“GLOCK 20/21 | OWB COVERT Kydex Holster | QUICKSHIP | C&G Holsters”
Likely fit
$111.99
GLOCK 20/21 TLR-1/HL | A-TACS LE | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21 TLR-1/HL | A-TACS LE | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters”
Likely fit
$90.39
GLOCK 20/21 TLR-1/HL | Coyote Brown | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21 TLR-1/HL | Coyote Brown | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters”
Likely fit
$90.39
GLOCK 20/21 TLR-1/HL | FDE | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21 TLR-1/HL | FDE | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters”
Likely fit
$94.99
GLOCK 20/21 TLR-8/A/G | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21 TLR-8/A/G | OWB TACTICAL Kydex Holster | CUSTOM | C&G Holsters”
Likely fit
$94.99
GLOCK 20/21 TLR-8/A/G | OWB TACTICAL Kydex Holster | QUICKSHIP | C&G Holsters
C&G Holsters
“GLOCK 20/21 TLR-8/A/G | OWB TACTICAL Kydex Holster | QUICKSHIP | C&G Holsters”
Likely fit
$159.99
GLOCK 20/21/29/30 | DENALI Chest Mounted Kydex Holster System | CUSTOM | C&G Holsters
C&G Holsters
“GLOCK 20/21/29/30 | DENALI Chest Mounted Kydex Holster System | CUSTOM | C&G Holsters”
Likely fit
$159.99
GLOCK 20/21/29/30 | DENALI Chest Mounted Kydex Holster System | QUICKSHIP | C&G Holsters
C&G Holsters
“GLOCK 20/21/29/30 | DENALI Chest Mounted Kydex Holster System | QUICKSHIP | C&G Holsters”
MAKE/MODEL | Glock 20/21 | IWB Covert Kydex Holster | QS
C&G Holsters
“MAKE/MODEL | Glock 20/21 | IWB Covert Kydex Holster | QS”
MAKE/MODEL | Glock 20/21 | OWB Covert Kydex Holster | QS
C&G Holsters
“MAKE/MODEL | Glock 20/21 | OWB Covert Kydex Holster | QS”
MAKE/MODEL/LIGHT - GLOCK 20/21 TLR-1/HL | OWB TACTICAL Kydex Holster | QS
C&G Holsters
“MAKE/MODEL/LIGHT - GLOCK 20/21 TLR-1/HL | OWB TACTICAL Kydex Holster | QS”
MAKE/MODEL/LIGHT - GLOCK 20/21 TLR-7/A/X | OWB TACTICAL Kydex Holster | QS
C&G Holsters
“MAKE/MODEL/LIGHT - GLOCK 20/21 TLR-7/A/X | OWB TACTICAL Kydex Holster | QS”
MAKE/MODEL/LIGHT - GLOCK 20/21 TLR-8/A/G | OWB TACTICAL Kydex Holster | QS
C&G Holsters
“MAKE/MODEL/LIGHT - GLOCK 20/21 TLR-8/A/G | OWB TACTICAL Kydex Holster | QS”
MAKE/MODEL/LIGHT - GLOCK 20/21 X300U/T | OWB TACTICAL Kydex Holster | QS
C&G Holsters
“MAKE/MODEL/LIGHT - GLOCK 20/21 X300U/T | OWB TACTICAL Kydex Holster | QS”
Likely fit
$54.97
Likely fit
$69.97
Likely fit
$69.97
Likely fit
$129.97
Likely fit
$52.97
Likely fit
$54.97
Likely fit
$69.97
Likely fit
$36.97
Likely fit
$69.97
Likely fit
$129.97
Likely fit
$52.97
Likely fit
$68
Likely fit
$76
International Holster (Glock)
Comp-Tac
“International Holster (Glock) | 20/21/SF Rail / Right Hand / Black”
Likely fit
$87
Likely fit
$78
Paddle Holster / FBI Cant (Glock)
Comp-Tac
“Paddle Holster / FBI Cant (Glock) | 20/21/Rail / Right Hand / Black”
Likely fit
$76
Paddle Holster / Speed Cant (Glock)
Comp-Tac
“Paddle Holster / Speed Cant (Glock) | 20/21/Rail / Right Hand / Black”
Likely fit
$69
Likely fit
$83
Likely fit
$96
Warrior Light Bearing Holster (Glock / TLR-1/HL)
Comp-Tac
“Warrior Light Bearing Holster (Glock / TLR-1/HL) | 20/21/SF / Right Hand / Black”
Likely fit
$96
Warrior Light Bearing Holster (Glock / X300U-A)
Comp-Tac
“Warrior Light Bearing Holster (Glock / X300U-A) | 20/21/SF / Right Hand / Black”
Likely fit
$24.99
Likely fit
$104.49
Archangel 2© Appendix Carry AIWB Holster
Dale Fricke Holsters
“Archangel 2© Appendix Carry AIWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Archangel© Appendix Carry AIWB Holster
Dale Fricke Holsters
“Archangel© Appendix Carry AIWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Ehud© Appendix Carry AIWB Holster
Dale Fricke Holsters
“Ehud© Appendix Carry AIWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$110
Likely fit
$104.49
Gideon Elite© OWB Holster
Dale Fricke Holsters
“Gideon Elite© OWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Joab© Appendix Carry AIWB Holster
Dale Fricke Holsters
“Joab© Appendix Carry AIWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$95
Joshua Covert© IWB Holster
Dale Fricke Holsters
“Joshua Covert© IWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Likely fit
$104.49
Michael© Red Dot Sight OWB Holster
Dale Fricke Holsters
“Michael© Red Dot Sight OWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Nehemiah Strong Side Carry© IWB Holster
Dale Fricke Holsters
“Nehemiah Strong Side Carry© IWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Seraphim 2© Red Dot Sight Appendix Carry AIWB Holster
Dale Fricke Holsters
“Seraphim 2© Red Dot Sight Appendix Carry AIWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$104.49
Seraphim© Red Dot Sight Appendix Carry AIWB Holster
Dale Fricke Holsters
“Seraphim© Red Dot Sight Appendix Carry AIWB Holster | Glock Model 20/21/21SF/37”
Likely fit
$96.98
AIWB CONCEALED CARRY PACKAGE
Dara Holsters
“AIWB CONCEALED CARRY PACKAGE | GLOCK 20/21 (GEN 3-4)”
Likely fit
$63.99
Likely fit
$91.98
Likely fit
$58.99
Likely fit
$138.49
Likely fit
$111.98
LIGHT BEARING CONCEALED CARRY PACKAGE
Dara Holsters
“LIGHT BEARING CONCEALED CARRY PACKAGE | GLOCK 20/21 (Gen 3&4) + TLR-1 HL/HP”
Likely fit
$78.99
LIGHT BEARING IWB HOLSTER
Dara Holsters
“LIGHT BEARING IWB HOLSTER | GLOCK 20/21 (Gen 3&4) + TLR-1 HL/HP”
Likely fit
$148.49
LIGHT BEARING LEVEL 2 MOUNTED HOLSTER
Dara Holsters
“LIGHT BEARING LEVEL 2 MOUNTED HOLSTER | GLOCK 20/21 (Gen 3&4) + TLR-1 HL/HP”
Likely fit
$96.99
LIGHT BEARING MOUNTED HOLSTER
Dara Holsters
“LIGHT BEARING MOUNTED HOLSTER | GLOCK 20/21 (Gen 3&4) + TLR-1 HL/HP”
Likely fit
$80.99
Light bearing OWB Paddle Holster
Dara Holsters
“Light bearing OWB Paddle Holster | GLOCK 20/21 (Gen 3&4) + TLR-1 HL/HP”
Likely fit
$78.99
LIGHT BEARING SMALL OF BACK HOLSTER - PALM OUT
Dara Holsters
“LIGHT BEARING SMALL OF BACK HOLSTER - PALM OUT | GLOCK 20/21 (Gen 3&4) + TLR-1 HL/HP”
Likely fit
$86.99
Likely fit
$67.09
Likely fit
$67.09
Likely fit
$58.99
Likely fit
$91.98
Slick Side Concealed Carry Package
Dara Holsters
“Slick Side Concealed Carry Package | GLOCK 20/21 (GEN 3-4)”
Likely fit
$58.99
Likely fit
$58.99
SMALL OF BACK HOLSTER PALM OUT
Dara Holsters
“SMALL OF BACK HOLSTER PALM OUT | GLOCK 20/21 (GEN 3-4)”
Likely fit
$79.99
Glock Compatible -IWB Delta Holster (Appendix Carry)
Eclipse Holsters
“Glock Compatible -IWB Delta Holster (Appendix Carry) | Glock 21 / right”
Likely fit
$69.99
Glock Compatible -IWB Intrepid Holster (#1 Best Selling Holster)
Eclipse Holsters
“Glock Compatible -IWB Intrepid Holster (#1 Best Selling Holster) | Glock 21 / right”
Likely fit
$74.99
Glock Compatible -OWB Odyssey Holster (SplitPaddle)
Eclipse Holsters
“Glock Compatible -OWB Odyssey Holster (SplitPaddle) | Glock 21 / right”
Likely fit
$74.99
Glock Compatible -OWB Orion Holster (Paddle)
Eclipse Holsters
“Glock Compatible -OWB Orion Holster (Paddle) | Glock 21 / right”
Likely fit
$64.99
Glock Compatible- Molly B Holster
Eclipse Holsters
“Glock Compatible- Molly B Holster | Glock 21 / Right”
Likely fit
$66
GS-09 Glock .45/ 10mm - Models 20/21/37 - LEFT HAND
Eclipse Holsters
“GS-09 Glock .45/ 10mm - Models 20/21/37 - LEFT HAND”
Likely fit
$39
Likely fit
$0
Holster Gun Make | Glock (Excludes Gen 6)
Eclipse Holsters
“Holster Gun Make | Glock (Excludes Gen 6) | Glock 21”
Likely fit
$74.99
Polymer80-OWB Orion Holster (Paddle)
Eclipse Holsters
“Polymer80-OWB Orion Holster (Paddle) | Polymer8 Glock 20/21 Length / right”
Likely fit
$84.98
Quick Buy- IWB Aurora Purple Holster
Eclipse Holsters
“Quick Buy- IWB Aurora Purple Holster | Glock .45/10mm- Model 20/21 / right”
Likely fit
$84.98
Quick Buy- IWB Carbon Fiber with EMT Red Back
Eclipse Holsters
“Quick Buy- IWB Carbon Fiber with EMT Red Back | Glock .45/10mm- Model 20/21 / right”
Likely fit
$84.98
Quick Buy- IWB Deadpool Holster
Eclipse Holsters
“Quick Buy- IWB Deadpool Holster | Glock .45/10mm- Model 20/21 / right”
Likely fit
$84.98
Quick Buy- IWB Guns&Roses Holster
Eclipse Holsters
“Quick Buy- IWB Guns&Roses Holster | Glock .45/10mm- Model 20/21 / right”
Likely fit
$84.98
Quick Buy- IWB Roses Holster
Eclipse Holsters
“Quick Buy- IWB Roses Holster | Glock .45/10mm- Model 20/21 / right”
Likely fit
$84.98
Quick Buy- IWB Roses Holster v2
Eclipse Holsters
“Quick Buy- IWB Roses Holster v2 | Glock .45/10mm- Model 20/21 / right”
Likely fit
$104.95
Glock Compatible - Fits Model 20, 21, 20SF, 21SF - Appendix - Strong Side - Optic Ready Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 20, 21, 20SF, 21SF - Appendix - Strong Side - Optic Ready Holster”
Likely fit
$89.95
Glock Compatible - Fits Model 20, 21, 20SF, 21SF - Appendix Carry - Strong Side - Single Clip Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 20, 21, 20SF, 21SF - Appendix Carry - Strong Side - Single Clip Holster”
Likely fit
$89.95
Glock Compatible - Fits Model 20, 21, 20SF, 21SF - IWB & OWB - Double Clip Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 20, 21, 20SF, 21SF - IWB & OWB - Double Clip Holster”
Likely fit
$69.95
Glock Compatible - Fits Model 20, 21, 20SF, 21SF - OWB Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 20, 21, 20SF, 21SF - OWB Holster”
Likely fit
$89.95
Glock Compatible - Fits Model 20, 21, 20SF, 21SF - Small of the Back Carry - Single Clip Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 20, 21, 20SF, 21SF - Small of the Back Carry - Single Clip Holster”
Likely fit
$89.95
Glock Compatible - Fits Model 21 SF With Picatinny Rail - Appendix Carry - Strong Side - Single Clip Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 21 SF With Picatinny Rail - Appendix Carry - Strong Side - Single Clip Holster”
Likely fit
$89.95
Glock Compatible - Fits Model 21 SF With Picatinny Rail - IWB & OWB - Double Clip Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 21 SF With Picatinny Rail - IWB & OWB - Double Clip Holster”
Likely fit
$89.95
Glock Compatible - Fits Model 21 SF With Picatinny Rail - Small of the Back Carry - Single Clip Holster
Hidden Hybrid Holsters
“Glock Compatible - Fits Model 21 SF With Picatinny Rail - Small of the Back Carry - Single Clip Holster”
Likely fit
$59.99
Fits Glock 20/21 OWB Modular Hole Pattern (MHP) Holster
Mission First Tactical
“Fits Glock 20/21 OWB Modular Hole Pattern (MHP) Holster”
Likely fit
$120
[COFFIN 2.0] OWB Holster For Glock Pistols
Nerd Holsters“[COFFIN 2.0] OWB Holster For Glock Pistols | G20/21”
Likely fit
$120
[COFFIN 2.0] OWB Holster For IWI Pistols
Nerd Holsters“[COFFIN 2.0] OWB Holster For IWI Pistols | G20/21”
Likely fit
$120
[COFFIN 2.0] OWB Holster For Staccato Pistols
Nerd Holsters“[COFFIN 2.0] OWB Holster For Staccato Pistols | G20/21”
Likely fit
$120
[COFFIN 2.0] OWB Holster For Zev Pistols
Nerd Holsters“[COFFIN 2.0] OWB Holster For Zev Pistols | G20/21”
Likely fit
$80
[ROOK] OWB Holster For Canik Pistols
Nerd Holsters“[ROOK] OWB Holster For Canik Pistols | G20/21”
Likely fit
$80
Likely fit
$80
[ROOK] OWB Holster For Glock Pistols
Nerd Holsters“[ROOK] OWB Holster For Glock Pistols | G20/21”
Likely fit
$80
[ROOK] OWB Holster For Polymer80 Pistols
Nerd Holsters“[ROOK] OWB Holster For Polymer80 Pistols | G20/21”
Likely fit
$80
[ROOK] OWB Holster For Shadow Systems Pistols
Nerd Holsters“[ROOK] OWB Holster For Shadow Systems Pistols | G20/21”
Likely fit
$80
[ROOK] OWB Holster For Smith & Wesson Pistols
Nerd Holsters“[ROOK] OWB Holster For Smith & Wesson Pistols | G20/21”
Likely fit
$80
[ROOK] OWB Holster For Springfield Armory Pistols
Nerd Holsters“[ROOK] OWB Holster For Springfield Armory Pistols | G20/21”
Likely fit
$80
[ROOK] OWB Holster For Walther Pistols
Nerd Holsters“[ROOK] OWB Holster For Walther Pistols | G20/21”
Likely fit
$65
Likely fit
$65
[SLICC] IWB Holster for Ruger Pistols
Nerd Holsters“[SLICC] IWB Holster for Ruger Pistols | G20/21”
Likely fit
$65
Likely fit
$65
[SLICC] IWB Holster for Springfield Armory
Nerd Holsters“[SLICC] IWB Holster for Springfield Armory | G20/21”
Likely fit
$65
Likely fit
$65
[SLY] OWB Holster For Canik Pistols
Nerd Holsters“[SLY] OWB Holster For Canik Pistols | G20/21”
Likely fit
$65
Likely fit
$65
Likely fit
$65
[SLY] OWB Holster For Glock Pistols
Nerd Holsters“[SLY] OWB Holster For Glock Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For H&K Pistols
Nerd Holsters“[SLY] OWB Holster For H&K Pistols | G20/21”
Likely fit
$65
Likely fit
$65
[SLY] OWB Holster For Polymer 80 Pistols
Nerd Holsters“[SLY] OWB Holster For Polymer 80 Pistols | G20/21”
Likely fit
$65
Likely fit
$65
[SLY] OWB Holster For Shadow Systems Pistols
Nerd Holsters“[SLY] OWB Holster For Shadow Systems Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For Sig Sauer Pistols
Nerd Holsters“[SLY] OWB Holster For Sig Sauer Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For Smith & Wesson Pistols
Nerd Holsters“[SLY] OWB Holster For Smith & Wesson Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For Springfield Armory Pistols
Nerd Holsters“[SLY] OWB Holster For Springfield Armory Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For Staccato Pistols
Nerd Holsters“[SLY] OWB Holster For Staccato Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For Taurus Pistols
Nerd Holsters“[SLY] OWB Holster For Taurus Pistols | G20/21”
Likely fit
$65
[SLY] OWB Holster For Walther Pistols
Nerd Holsters“[SLY] OWB Holster For Walther Pistols | G20/21”
Likely fit
$65
Likely fit
$100
Likely fit
$212.30
Glock 20/21 Chest Rig Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Chest Rig Holster | Palmetto Leather”
Likely fit
$302.50
Glock 20/21 Double Shoulder Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Double Shoulder Holster | Palmetto Leather”
Likely fit
$193.60
Glock 20/21 IWB CCW Leather Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 IWB CCW Leather Holster | Palmetto Leather”
Likely fit
$169.40
Glock 20/21 IWB Leather Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 IWB Leather Holster | Palmetto Leather”
Likely fit
$157.30
Glock 20/21 Leather Appendix Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Leather Appendix Holster | Palmetto Leather”
Likely fit
$157.30
Glock 20/21 Leather CCW Holster | P.L.W.
Palmetto Leather Works
“Glock 20/21 Leather CCW Holster | P.L.W.”
Likely fit
$84.70
Glock 20/21 Leather Pocket Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Leather Pocket Holster | Palmetto Leather”
Likely fit
$145.20
Glock 20/21 Low Pro Elite Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Low Pro Elite Holster | Palmetto Leather”
Likely fit
$157.30
Glock 20/21 OWB Leather Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 OWB Leather Holster | Palmetto Leather”
Likely fit
$145.20
Glock 20/21 OWB Leather Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 OWB Leather Holster | Palmetto Leather”
Likely fit
$181.50
Glock 20/21 Professional IWB Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Professional IWB Holster | Palmetto Leather”
Likely fit
$142
Glock 20/21 Savanna Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Savanna Holster | Palmetto Leather”
Likely fit
$115.50
Glock 20/21 Single Clip CCW Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Single Clip CCW Holster | Palmetto Leather”
Likely fit
$212.30
Glock 20/21 Single Shoulder Holster | Palmetto Leather
Palmetto Leather Works
“Glock 20/21 Single Shoulder Holster | Palmetto Leather”
Likely fit
$64.95
Likely fit
$64.95
Likely fit
$59.95
Plain Clothes Holster System Modular IWB
Priority 1 Holsters
“Plain Clothes Holster System Modular IWB | Glock 20/21”
Likely fit
$99
Quick Ship - Ventcore 2.0 Appendix IWB Holster
StealthGearUSA
“Quick Ship - Ventcore 2.0 Appendix IWB Holster | Glock G20/G21 Gen 1-5”
Likely fit
$99
Quick Ship - Ventcore 2.0 IWB Mini Holster
StealthGearUSA
“Quick Ship - Ventcore 2.0 IWB Mini Holster | Glock G20/G21 Gen 1-5”
Likely fit
$99
Likely fit
$189
Likely fit
$63.95
Likely fit
$71.95
SG-X OWB Holster
StealthGearUSA
“SG-X OWB Holster | Glock G20/G21 / SG-X Drop Plate belt width 1.75"”
Likely fit
$151.20
StealthGearUSA® Ventcore 1.0 Drop-Leg Holster
StealthGearUSA
“StealthGearUSA® Ventcore 1.0 Drop-Leg Holster | Glock G20/G21”
Likely fit
$79.20
Ventcore 2.0 Appendix IWB Holster
StealthGearUSA
“Ventcore 2.0 Appendix IWB Holster | Glock G20/G21 Gen 1-5”
Likely fit
$69.99
Ventcore 2.0 Appendix IWB Platform Kit
StealthGearUSA
“Ventcore 2.0 Appendix IWB Platform Kit | Glock G20/G21 Gen 1-5”
Likely fit
$118.40
Ventcore 2.0 Appendix IWB Plus Holster
StealthGearUSA
“Ventcore 2.0 Appendix IWB Plus Holster | Glock G20/G21 Gen 1-5 (Mag Type I)”
Likely fit
$79.20
Ventcore 2.0 IWB Mini Holster
StealthGearUSA
“Ventcore 2.0 IWB Mini Holster | Glock G20/G21 Gen 1-5”
Likely fit
$69.99
Ventcore 2.0 IWB Mini Platform Kit
StealthGearUSA
“Ventcore 2.0 IWB Mini Platform Kit | Glock G20/G21 Gen 1-5”
Likely fit
$79.20
Ventcore 2.0 IWB Standard Holster
StealthGearUSA
“Ventcore 2.0 IWB Standard Holster | Glock G20/G21 Gen 1-5”
Likely fit
$69.99
Ventcore 2.0 IWB Standard Platform Kit
StealthGearUSA
“Ventcore 2.0 IWB Standard Platform Kit | Glock G20/G21 Gen 1-5”
Likely fit
$103.20
Ventcore 2.0 OWB FLEX Holster
StealthGearUSA
“Ventcore 2.0 OWB FLEX Holster | Glock G20/G21 Gen 1-5”
Likely fit
$99.99
Ventcore 2.0 OWB FLEX Platform Kit
StealthGearUSA
“Ventcore 2.0 OWB FLEX Platform Kit | Glock G20/G21 Gen 1-5”
Likely fit
$70
T.REX Ironside Holster
T.Rex Arms
“Glock Gen 1-4 21 with No light - Right & Left Hand | T.REX Ironside Holster”
Likely fit
$110
T.REX Ironside Hybrid Holster
T.Rex Arms
“Glock Gen 1-4 21 with No light - Right & Left Hand | T.REX Ironside Hybrid Holster”
Likely fit
$80
T.REX Ragnarok Holster
T.Rex Arms
“Glock Gen 1-4 21 with No light - Right & Left Hand | T.REX Ragnarok Holster”
Likely fit
$150
T.REX Sidecar Holster
T.Rex Arms
“Glock Gen 1-4 21 with No light - Right & Left Hand | T.REX Sidecar Holster”
Likely fit
Range+ OWB Paddle Holster in Right Hand for: Glock 20/21
“Range+ OWB Paddle Holster in Right Hand for: Glock 20/21”
Likely fit
$69.99
Glock 21 (Gen 3, 4) IWB Holster LightTuck®
Vedder Holsters
“Glock 21 (Gen 3, 4) IWB Holster LightTuck® / Olight PL-Pro”
Likely fit
$89.99
Glock 21 (Gen 3, 4) OWB Holster LightDraw®
Vedder Holsters
“Glock 21 (Gen 3, 4) OWB Holster LightDraw® / Yes”
Likely fit
$29
Glock 21 Clipless IWB/Pocket Holster
We The People Holsters
“Glock 21 Clipless IWB/Pocket Holster”
Likely fit
$149
Glock 21 Independence Leather IWB Holster
We The People Holsters
“Glock 21 Independence Leather IWB Holster”
Likely fit
$59.95
Glock 21 Independence Leather IWB Slimfit Holster
We The People Holsters
“Glock 21 Independence Leather IWB Slimfit Holster”
Likely fit
$149
Glock 21 Independence Leather OWB Holster
We The People Holsters
“Glock 21 Independence Leather OWB Holster”
Likely fit
$159
Glock 21 Independence Thumb Break Leather OWB Holster
We The People Holsters
“Glock 21 Independence Thumb Break Leather OWB Holster”
Likely fit
$52.49
Likely fit
$145
Likely fit
$159
Glock 21 MOS Independence Thumb Break Leather OWB Holster
We The People Holsters
“Glock 21 MOS Independence Thumb Break Leather OWB Holster”
Likely fit
$52.49
Glock 21 MOS Red Dot Optic Cut IWB Holster
We The People Holsters
“Glock 21 MOS Red Dot Optic Cut IWB Holster”
Likely fit
$52.49
Glock 21 MOS Red Dot Optic Cut OWB Holster
We The People Holsters
“Glock 21 MOS Red Dot Optic Cut OWB Holster”
Likely fit
$52.49
Glock 21 MOS with Streamlight TLR-1/1S/HL Light Red Dot Optic Cut IWB Holster
We The People Holsters
“Glock 21 MOS with Streamlight TLR-1/1S/HL Light Red Dot Optic Cut IWB Holster”
Likely fit
$52.49
Glock 21 MOS with Streamlight TLR-1/1S/HL Light Red Dot Optic Cut OWB Holster
We The People Holsters
“Glock 21 MOS with Streamlight TLR-1/1S/HL Light Red Dot Optic Cut OWB Holster”
Likely fit
$52.49
Glock 21 MOS with Streamlight TLR-7/7A/7X Light Red Dot Optic Cut IWB Holster
We The People Holsters
“Glock 21 MOS with Streamlight TLR-7/7A/7X Light Red Dot Optic Cut IWB Holster”
Likely fit
$52.49
Glock 21 MOS with Streamlight TLR-7/7A/7X Light Red Dot Optic Cut OWB Holster
We The People Holsters
“Glock 21 MOS with Streamlight TLR-7/7A/7X Light Red Dot Optic Cut OWB Holster”
Likely fit
$52.49
Glock 21 MOS with Surefire X300T-B Light Red Dot Optic Cut IWB Holster
We The People Holsters
“Glock 21 MOS with Surefire X300T-B Light Red Dot Optic Cut IWB Holster”
Likely fit
$52.49
Glock 21 MOS with Surefire X300T-B Light Red Dot Optic Cut OWB Holster
We The People Holsters
“Glock 21 MOS with Surefire X300T-B Light Red Dot Optic Cut OWB Holster”
Likely fit
$52.49
Likely fit
$29
Glock 21 Red Dot Optic Cut Clipless IWB/Pocket Holster
We The People Holsters
“Glock 21 Red Dot Optic Cut Clipless IWB/Pocket Holster”
Likely fit
$59.95
Glock 21 Red Dot Optic Cut Independence Leather IWB Slimfit Holster
We The People Holsters
“Glock 21 Red Dot Optic Cut Independence Leather IWB Slimfit Holster”
Likely fit
$52.49
Glock 21 with Streamlight TLR-1/1S/HL Light IWB Holster
We The People Holsters
“Glock 21 with Streamlight TLR-1/1S/HL Light IWB Holster”
Likely fit
$52.49
Glock 21 with Streamlight TLR-1/1S/HL Light OWB Holster
We The People Holsters
“Glock 21 with Streamlight TLR-1/1S/HL Light OWB Holster”
Likely fit
$52.49
Glock 21 with Streamlight TLR-7/7A/7X Light IWB Holster
We The People Holsters
“Glock 21 with Streamlight TLR-7/7A/7X Light IWB Holster”
Likely fit
$145
Glock 21 with Streamlight TLR-7/7A/7X Light Level 2 Duty Holster
We The People Holsters
“Glock 21 with Streamlight TLR-7/7A/7X Light Level 2 Duty Holster”
Likely fit
$52.49
Glock 21 with Streamlight TLR-7/7A/7X Light OWB Holster
We The People Holsters
“Glock 21 with Streamlight TLR-7/7A/7X Light OWB Holster”
Likely fit
$52.49
Glock 21 with Surefire X300T-B Light IWB Holster
We The People Holsters
“Glock 21 with Surefire X300T-B Light IWB Holster”
Likely fit
$52.49
Glock 21 with Surefire X300T-B Light OWB Holster
We The People Holsters
“Glock 21 with Surefire X300T-B Light OWB Holster”
Likely fit
$145
Glock 21 with Surefire X300U-A Light Level 2 Duty Holster
We The People Holsters
“Glock 21 with Surefire X300U-A Light Level 2 Duty Holster”
Likely fit
$100
Velox M7 Holster for Glock Large G21, G30, G23/5 etc
Werkz
“Velox M7 Holster for Glock Large G21, G30, G23/5 etc | 4.61": G20, G21 all generations”
Likely fit
$85
Werkz M6 IWB / AIWB Holster for Glock G20 / G21 Gen 3/4/5 with Streamlight TLR-1 / TLR-1S / TLR-1HL
Werkz
“Werkz M6 IWB / AIWB Holster for Glock G20 / G21 Gen 3/4/5 with Streamlight TLR-1 / TLR-1S / TLR-1HL”
How to read the badges
- Maker confirmed The maker names this exact model on the product page.
- Maker lists it The maker lists it, but the wording was loose enough that you should read the quote before buying.
- Likely fit Matched through the base model or base light. Most makers cut one shell for the family, but check the quote.
Questions
Which holsters fit the Glock 21 Gen4 MOS?
229 holsters from 25 makers list the Glock 21 Gen4 MOS, including Alien Gear Holsters, Allegiant Holsters, Black Arch Holsters, Black Scorpion Gear, Blackhawk, Blade-Tech. 0 name the exact model on the product page; 229 are listed with looser wording or through the base model, and each one shows the maker's quote so you can judge it yourself.
Which weapon lights have holster options for the Glock 21 Gen4 MOS?
Makers list holsters for the Glock 21 Gen4 MOS with Streamlight TLR-1 HL (19), Streamlight TLR-1 (18), SureFire X300U (16), Streamlight TLR-7A (13), Streamlight TLR-7X (13), SureFire X300T (12), SureFire X300V (8), SureFire XC3 (8). Light-bearing holsters are cut for one specific light, so match the exact model.
Will a Glock 21 Gen4 holster fit the Glock 21 Gen4 MOS?
Often, but not always. 229 of the holsters here are matched through the Glock 21 Gen4 listing rather than the Glock 21 Gen4 MOS by name. Makers usually mold one shell for a model family, but generation changes to the trigger guard, rail or slide can break retention. Prefer a holster whose listing names the Glock 21 Gen4 MOS, and read the quote before buying.
How does holstercheck verify a fit?
I crawl each maker's product pages and record the gun and light named in the variant list or compatibility text. Every result shows that text with a link to the page it came from, and the date it was last seen. Loose wording is marked as such rather than hidden, and readers can report whether the holster fit their gun.