Rock Island Armory TAC Ultra FS HC AOS Features The Rock Island Armory TAC Ultra FS HC AOS uses a single-action 1911 trigger system on a steel frame with a black Parkerized finish that resists wear through hard use. An adjustable trigger lets the shooter fine-tune pull weight and reset to their preference while the ambidextrous thumb safety and grip safety preserve the 1911 s proven carry-ready manual of arms. The 5.05 barrel is rifled with a 1-in-16 twist for consistent accuracy at typical defensive and range distances. Aggressive slide serrations front and rear make manipulating the slide fast and certain even with wet or gloved hands. The optics-cut slide accepts a variety of included mounting plates so the shooter can run a red dot without sending the slide out for custom milling and Glock-pattern front and rear sights remain co-witnessed underneath the optic for a backup sighting system. G10 grip panels provide a textured durable gripping surface that holds up to holster wear and range use alike. A forend Picatinny rail lets the shooter add a weapon light for low-light defensive work and the double-stack 16-round magazine gives this 1911 significantly more capacity than a traditional single-stack design. Built for duty and competition alike this TAC Ultra FS HC AOS delivers a modern optics-ready take on the classic 1911 platform. Rock Island Armory TAC Ultra FS HC AOS Specifications Brand: Rock Island Armory Model: TAC Ultra FS HC AOS Type: Semi-Auto Pistol Action: Single Action Caliber: 9mm Barrel Length: 5.05 Overall Length: 8.74 Capacity: 16+1 Twist Rate: 1-in-16 Frame: Steel Finish: Black Parkerized Grips: G10 Front Sight: Glock Pattern Rear Sight: Glock Pattern Safety Features: Ambidextrous Thumb Safety Grip Safety Weight: 40 oz Available At: GrabAGun