A match grade, Commander-style, lightweight hammer with a large opening machined into the top to lighten the hammer and speed the fall. The sides have also been narrowed so they cannot contact the slide. Heat treated to at least 50 Rockwell hardness and ready to install. Instructions included. Requires fitting by a qualified gunsmith.FeaturesCompletely machined from barstockGuaranteed for life against breakageImproved design with a chamfer machined all the way around the outside, and also inside the holeNarrowed half-cock notch eliminates sear damageCommander style spur, finely serrated for positive gripping surfaceSides are narrowed to eliminate drag on slideLowered strut pin hole reduces full-cock spring pressureHammer hooks precisely machined.