The Rock Standard full size Pistol built in traditional classic Series 70 design and delivered with a 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.