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Springfield Armory 1911 Operator 4.25" AOS
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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
Springfield Armory
Model & version
1911 Operator 4.25" AOS
Mounting details
MIL-STD-1913 Picatinny, Agency Optic System (AOS) plate cut — Springfield Armory AOS 1911 / 2011
Compatibility records
232
Optics & footprint adapters
Optics
105 listed- Burris
FastFire E
Interface match - Bushnell
RXM-300 Reflex Sight
Interface match - C&H Precision
COMP Max Red Dot Optic
Interface match
Optic Plates
8 listed- C&H Precision
Agency Optic System to Aimpoint ACRO (STEEL)
Interface match - C&H Precision
Agency Optic System to EOTECH EFLX
Interface match - C&H Precision
Agency Optic System to Holosun 407k / 507k & C&H EDC / EDC Enclosed / Olight Osight S (No Integrated Rear Sight)
Interface match - C&H Precision
Agency Optic System to Holosun 509T (STEEL)
Interface match
Lights & rail fitment
Triggers & internals
Triggers
21 listed- Cylinder & Slide
1911 3 Hole V Match Long Aluminum Trigger with Serrations
Manufacturer documented - Eemann Tech
K-Hole Trigger for 1911
Manufacturer documented - Fusion Firearms
1911 Trigger - Medium Length, Solid Design w/ Serrated Front
Part no. 1911trg496Manufacturer documented - Harrison Design
HD-101-N Extreme Service Trigger
Manufacturer documented
Barrels & comps
Barrels
21 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
.355 Clark/Para Ramped
Manufacturer documented
Grip & magwells
Magazines
11 listed- Mec-Gar
1911 Full Size .45 ACP 10-Round Magazine
Part no. MGCG4510AManufacturer documented - Springfield Armory
1911 10-Round Stainless Steel Magazine - .45 ACP
Manufacturer documented - Mec-Gar
1911 Full Size .45 ACP 7-Round Magazine
Part no. MGCG4507BManufacturer documented - Springfield Armory
1911 7-Round Metalform Magazine - .45 ACP
Manufacturer documented
Slides
Categories with no listings (11)
About the Springfield Armory 1911 Operator 4.25" AOS
Manufacturer listing ↗ · Checked 2026-08-02
- Type
- Pistol
- Manufacturer
- Springfield Armory
- Model & version
- 1911 Operator 4.25" AOS
- Mounting details
- MIL-STD-1913 Picatinny, Agency Optic System (AOS) plate cut — Springfield Armory AOS 1911 / 2011
- Height
- 5.25"
- Barrel length
- 4.25"
- Overall length
- 7.9"