Specifications Height (inches) 90Adeg to barrel: 5.76 Weight (ounces) with empty magazine: 35.6 Length (inches): 8.56 Magazines Included: (1) 17 Round and (2) 20 Round Recoil spring (pounds): 10 Toolless Guide Rod (Patent-pending) Carbon Fiber Grip Module Slide Material: Stainless Steel External extractor Matte SST Finish Custom 2K11 front and rear serrations Compensator: Forward port - 0.16 square inches Sights Front: TAG FiberLok 2 Rear: Adjustable rear sight cover plate Additional red and black fiber-optic inserts included All models ship with Tag Precision RMR adapter plate Trigger GT Match Grade Trigger 3-4lb pull Material: Aluminum Frame Material: Stainless Steel Width (inches): 1.53 SST steel sub-frame - Matte SST Ambidextrous safety Bumped grip safety Front strap checkering (LPI) Barrel Length (inches): 5 Material: Stainless Steel Twist rate (left hand): 5R rifling | 1:10 Fluted Ramped Matte SST finish Grips Kimber\'s proprietary double carbon fiber and glass matrix