Jarvis, Inc.
Springfield Armory 1911 10-8 Performance Master Class AOS Barrels
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Manufacturer
Springfield Armory
Model & version
1911 10-8 Performance Master Class AOS
Mounting details
Agency Optic System (AOS) plate cut — Springfield Armory AOS 1911 / 2011
Parts listed
4 total
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
Jarvis, Inc.2
Based on manufacturer information — Aug 2026. Jarvis 1911 Barrel — Government 5" 9mm
Nowlin2
Bull Barrel, .45ACP Gov. Gunsmith
Part no. SB-5SBBG-45May require modification — see notes.
Bull Barrel, 9mm Gov’t. or Commander Ramped Barrel
Part no. RB-5BBG-9May require modification — see notes.