Features: 4" slide thinned substantially for weight reduction. Single stack aluminum Bobtail frame. Exclusive Snakeskin treatment on forestrap and BobtailA(R) housing. 7-top custom cut slide with special front and rear serrations. External extractor. Easy to change orange HD XR front night sight. Smaller redesigned "Tactical Edge" U-notch rear sight. Bull barrel. Guide rod with flat wire recoil spring system. Custom options included: recessed slide stop flush barrel with recessed crown slim grips.