Rock Island Armory 51994: ROCK Island ARMORYtac Ultra MSa Mid-Size frame a Parkerized finisha Full-length guide rod a Full dust cover a Dovetail-mounted Fiber-Optic front sight a LPA MPS1-Type adjustable rear sight a Wide angled rear slide serrations a Black/Gray textured G10 grips a Ambidextrous safety a OAL: 8" TAC Series Common SPECSa Traditional 70 series design with tactical upgrades a Crisp 4-6 lb. factory trigger a Full-length under-picatinny tactical rail a Extended Beavertail a Combat hammer a Combat trigger with adjustable over travel stop ROCK Island 1911 OVERVIEWa Built to true Series 70 design a Semi-Auto recoil operated a Built using 4140 Ordnance steel & engineered using the latest CNC machines a Hand-fitted & confirmed to meet strict tolerance & quality requirements in tightness smoothness including overall look & feel a 4140 steel frame & slide a Button rifled barrel