10mm Auto. 5" barrel length. SN: RIA2361619. Parkerized metal finish overall with polished barrel and mounting black synthetic diamond checkered Rock Island logo grips. Short recoil operated single-action autoloading pistol fed by detachable single stack magazines. Item shows standard markings including {ROCK ISLAND/ARMORY} logo to the left slide behind cocking serrations, and M1911 A1-FS to the right frame. Underside of frame shows two-line manufacturer mark reading APINTL-PAHRUMP NV/ACP PHILIPPINES. Features include a flat and vertically serrated mainspring housing, military pattern sights, and a bushing-less bull barrel. Comes in a matching black synthetic hard case with one magazine, the owner's manual, and a factory test casing in package.