Cylinder & Slide
Rock Island Armory GI Standard FS Threaded
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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.
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Model details
Manufacturer
Rock Island Armory
Model & version
GI Standard FS Threaded
Mounting details
Not recorded
Compatibility records
37
Triggers & internals
Barrels & comps
Barrels
9 listed- Ed Brown
Barrels — Government, 45 ACP, standard feedramp
Manufacturer documented - Jarvis, Inc.
Jarvis 1911 Barrel — Government 5" 45 ACP
Manufacturer documented - Kart Precision
Gunsmith Fit Barrel
Manufacturer documented - Nowlin
Barrel, Gunsmith, Non-Ramped
Part no. SBPGManufacturer 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
Grip & magwells
Categories with no listings (14)
About the Rock Island Armory GI Standard FS Threaded
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 FS Threaded
- Mounting details
- Not recorded
- Barrel length
- 5.6"
- Manufacturer item #
- 51473