Jarvis, Inc. · Barrels
Jarvis 1911 Barrel — Commander 4.25" 45 ACP
Compatibility with Rock Island Armory GI Standard MS
Compatibility
Fit recorded
- Model
- Rock Island Armory GI Standard MS
- Based on
- Manufacturer documented
Based on manufacturer documentation or support information.
Jarvis Commander 4.25" 45 ACP barrel. Drop-in, fitting, or fitted-by-Jarvis; ramped/bull options per order.
Check your exact model and part before ordering. Fitment limits
Member experience
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