The Rock Standard full-size is built in traditional classic 70 series design and delivered with our top quality production and engineering standards. It’s chambered in .45ACP with a 5 button rifled barrel supported by a full length guide rod. Smooth angled snag-free style allows for quick draw in fast need situations. Includes a low profile angled rear sight along with skeletonized hammer and trigger with adjustable over travel stop and ambidextrous safety standard in the Rock series. Finished with a tough parkerzied matte coating and comes with checkered rubber grips. True to all Rock Island 1911s it comes with a crisp factory 4- to 6-pound trigger making it a great experience right out of the box. – Caliber: 45ACP – Capacity: 8 Rounds – Sights: Front: Low Profile Dovetailed Rear: Fixed – Weight: Unloaded: 2.49 lbs / 1.13 kg Loaded: 2.87 lbs / 1.3 kg – Length: 8.56 inch / 217 mm – Height: 5.5 inch / 139.7 mm – Grips: Rubber – Frame: Parkerized – Slide: Parkerized – Barrel Length: 5 inch / 127 mm – Grooves: 6 – Trigger Pull: 4-6 lbs / 1.36 to 1.81 kg – Length of Twist: 1 in 16