Springfield Ronin AOS 1911 | .45 ACP | 4.25 in | PX9118LAOS-PAC

The Springfield Armory Ronin AOS is a modern, optics-ready 1911 built around a 4.25″ match-grade stainless steel barrel chambered in .45 ACP. The Ronin blends traditional 1911 controls and ergonomics with factory optics compatibility and a Viridian RFX11 green-dot included in the Gear Pac. This configuration is suitable for range-focused carry and precision target work where classic 1911 handling and contemporary sighting systems are desired. For an aftermarket optic option under $1,000 that pairs well with this pistol, the factory-supplied Viridian RFX11 provides a compact green dot designed for quick target acquisition and co-witnessing with the iron sights.

Product Specifications

• The caliber is .45 ACP.
• The barrel measures 4.25 inches and is described as a forged stainless steel match-grade barrel with a 1:16 rate of twist.
• The slide is a forged carbon steel, blued, optics-ready design.
• The frame is described in factory materials as forged aluminum alloy with a satin aluminum Cerakote finish in the factory specification text.
• The included optic is a factory-installed Viridian RFX11 green dot.
• The sights consist of a fiber optic front and a black serrated rear that are intended to co-witness with the optic.
• The handgun uses a commander-length GI-style recoil system.
• The grips are wood laminate.
• The action type is semi-automatic.
• The package includes four 8‑round magazines, providing multiple loaded magazines for range use or training.
• The magazine capacity is listed as 8 rounds.
• The front sight is fiber optic for fast sight acquisition in daylight conditions.
• The barrel type is specified as stainless.
• The additional factory features list a Satin Aluminum Cerakote frame and a dual captive recoil spring.
• The product UPC is 706397999971.

The Ronin AOS presents a practical combination of traditional 1911 ergonomics and modern sighting options. Its optics-ready slide and included Viridian RFX11 make it straightforward to run with a red/green dot for rapid target acquisition, while the match-grade barrel and adjustable rear sight let shooters refine accuracy during range sessions. The Gear Pac configuration—complete with four magazines and a padded case—supports extended range use or organized transport to the range.

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