The Rock Ultra compact is built in traditional 70 series design and delivered with our precise engineering standards and first rate upgrades. This pistol is chambered in 45 ACP with a 3.50 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 adjustable rear sight and high visibility fiber optic front sight. Also includes skeletonized hammer and trigger with adjustable over travel stop and ambidextrous safety which comes standard in the Rock series. The Rock Ultra is finished with a tough parkerzied matte coating and adds battle ready G10 tactical grips. True to all Rock Island 1911s the Rock Ultra comes with a crisp factory 4- to 6-pound trigger to give you a great experience right out of the box. – Caliber: 45ACP – Capacity: 7 Rounds – Sights: Front: Dovetail Fiber-Optic Front Sight Rear: LPA MPS1-Type Adjustable Rear Sight – Weight Unloaded: 2.35 lbs – Length: 7.13 inch / 181 mm – Height: 5.11 inch / 130 mm – Grips: G10 – Frame: Parkerized – Slide: Parkerized – Barrel Length: 3.5 inch / 89 mm – Grooves: 6 – Trigger Pull: 4-6 lbs / 1.81 to 2.72 kg – Length of Twist: 1 in 16