Cylinder & Slide
Colt 1911 Mil-Spec
Explore parts, discover makers and check what fits your model.
Only you can see your saved models.
Choose a part to see sources and fitment details.
What the compatibility labels mean
How we knowHow we check compatibility
- Lab testedFit checked by Firearm Lab for the recorded setup.
- Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
- Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.
Check your exact model and part before ordering. Fitment limits
Model details
Manufacturer
Colt
Model & version
1911 Mil-Spec
Mounting details
Not recorded
Compatibility records
45
Triggers & internals
Barrels & comps
Barrels
8 listed- Ed Brown
Barrels — Government, 45 ACP, standard feedramp
Manufacturer documented - Kart Precision
Gunsmith Fit Barrel
Manufacturer documented - Nowlin
Barrel, Gunsmith, Non-Ramped
Part no. SBPGManufacturer documented - Oriskany Arms
1911 Match Grade Barrel, 45 ACP, 5", Stainless Steel, Standard Ramp
Manufacturer documented
Sights
Sights
6 listed- Dawson Precision
Sight for Colt 1911 MIL-Spec, Fixed Carry Black Rear,
Manufacturer documented - XS Sights
DXT Big Dot Night Sights - Colt 1911
Manufacturer documented - Dawson Precision
Sight for Colt 1911 MIL-Spec, Fixed Carry Fiber Optic Rear,
Manufacturer documented - XS Sights
DXT2 Big Dot Night Sights - Colt
Manufacturer documented
Grip & magwells
Magazines
6 listed- Mec-Gar
1911 FULL SIZE .45 ACP 10-ROUND ANTI-FRICTION
Manufacturer documented - Mec-Gar
1911 Full Size .45 ACP 10-Round Magazine
Part no. MGCG4510AManufacturer documented - Mec-Gar
1911 Full Size .45 ACP 7-Round Magazine
Part no. MGCG4507BManufacturer documented - Mec-Gar
1911 Full Size .45 ACP 8-Round Magazine
Part no. MGCG4508BPFManufacturer documented
Slides
Slides
4 listed- Advantage Arms
22LR Conversion Kit — 1911 Mini CA
Manufacturer documented - Advantage Arms
22LR Conversion Kit — 1911 Mini Threaded
Manufacturer documented - Advantage Arms
22LR Conversion Kit — 1911 Standard
Manufacturer documented - Advantage Arms
22LR Conversion Kit — 1911 Target
Manufacturer documented
Also on this pistol
Holsters
2 makers- Blackhawkchecked 2026-11-01
- Bravo Concealmentchecked 2026-11-01
Check each manufacturer’s options for your model, light and optic.
Categories with no listings (12)
About the Colt 1911 Mil-Spec
Colt Mil-Spec 1911 (centerfire). Seeded 2026-08-03 so Dawson "Colt 1911 Mil-Spec" sights stop matching Springfield Armory 1911 Mil-Spec (wrong brand).
- Type
- Pistol
- Manufacturer
- Colt
- Model & version
- 1911 Mil-Spec
- Caliber
- .45 ACP
- Mounting details
- Not recorded