Cylinder & Slide
Rock Island Armory GI Standard MS
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- Lab testedFit checked by Firearm Lab for the recorded setup.
- Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
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Model details
Manufacturer
Rock Island Armory
Model & version
GI Standard MS
Mounting details
Not recorded
Compatibility records
36
Triggers & internals
Barrels & comps
Barrels
9 listed- Ed Brown
Suppressor Ready Barrels — 4.25" Commander, 45 ACP, standard feedramp
Manufacturer documented - Jarvis, Inc.
Jarvis 1911 Barrel — Commander 4.25" 45 ACP
Manufacturer documented - Kart Precision
Gunsmith Fit Barrel
Manufacturer documented - KKM Precision
45ACP Clark/Para Ramped with .578×28 Suppressor Threads
Manufacturer documented
Slides
Grip & magwells
Categories with no listings (14)
About the Rock Island Armory GI Standard MS
Listed on the manufacturer catalogue (read 2026-08-04): https://www.armscor.com/full-size-pistols (+mid-size, +compact)
- Type
- Pistol
- Manufacturer
- Rock Island Armory
- Model & version
- GI Standard MS
- Mounting details
- Not recorded
- Barrel length
- 4.2"
- Manufacturer item #
- 51417