Holsters that fit the Glock 21 Gen3 with a SureFire X300
No maker I track lists this combination yet. Try the Glock 21 page; most makers cut one shell for the family. Or see every Glock 21 Gen3 fit.
Any lightNo light 87Streamlight TLR-1 13SureFire X300T 12SureFire X300U 9Streamlight TLR-1 HL 8Streamlight TLR-7A 8Streamlight TLR-7X 8SureFire X300V 8SureFire XC3 8Streamlight TLR-7 5
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
Will a Glock 21 holster fit the Glock 21 Gen3?
Often, but not always. 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 Gen3, 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.