The Rock Standard full size Pistol built in traditional classic Series 70 design and delivered with our top Quality Production and Engineering Standard. Chambered in 10MM with 5 Barrel. The Slide has a Double Wide Slant Serration and with traditional Roll Over Ejection Port. Slide and Frame are Stainless and all exposed Parts are matte chrome SAE 4140 high grade Steel. Front / Rear Sight and internal Parts are Parkerized finish. Smooth angled snag free low profile Rear Sight allow for quick draw in fast need situation. Includes skeletonize Hammer Beavertail Grip Safety 3D-Trigger and Ambidextrous Safety Lock which is standard in the Rock Series. Grips is a double diamond checkered wood. Rock Island Armory Pistol comes with crisp factory 4 to 6 lbs. trigger pull. Making it a great experience right out of the box. - Specifications - Series ROCK - Caliber 10MM - Capacity 8 - Barrel 5 - Overall Length 8.5 inch / 216 mm - Overall Width 1.41 inch / 36 mm - Overall Height 5.5 inch / 140 mm - Weight 3.71 lbs / 1.68 kg - Front Sight Fixed Dovetail Mount - Rear Sight Fixed Dovetail Mount - Grips Wood Double Checkered - Finish Stainless - Action Semi-Automatic - Trigger Pull 4-6 lbs