Specifications and features: Ruger 22/45 Mark III Hunter semi-automatic pistol .22 Long Rifle 4.5" target-crown, fluted bull barrel 6 grooves 1:16" twist 10 round capacity Manual safety Internal lock Magazine disconnect Loaded chamber indicator Serrated front strap Contoured ejection port Tapered bolt ears Polymer frame Stainless steel finish HiViz fiber optic front sight Adjustable notch rear sight Checkered black synthetic grip Drilled and tapped 8.5" overall length 5.35" tall 1" wide Weighs 29 ounces The Ruger 22/45 Hunter rimfire pistol features an accurate sighting system featuring a precision adjustable rear, fixed front sight, and a drilled and tapped receiver for Weaver style scope base adapters, included, for easy mounting of optics. A comfortable, precision molded Zytel polymer grip frame with a serrated front strap a checkered grip panel areas and back strap for a great appearance and comfortable non slip hold. The internal cylindrical bolt construction ensure permanent alignment and higher accuracy potential than conventional moving slide designs. The manual safety positively locks the sear when applied. Also features an unobtrusive internal lock that locks the safety in the "safe" position and allows you to safely secure the firearm when not in use. Also features a bull barrel, contoured ejection port, easy to grasp tapered bolt ears, a conveniently located push button magazine release.