The 1911 Light Speed II Chamfered Hammer is designed for the competitive shooter that demands the fastest lock time possible with a hammer that will provide a very light trigger pull and stand up to the punishing demands of firing thousands of rounds in practice and competition. The 1911 Light Speed II Chamfered Hammer weighs .3 OZ and is heat treated through out to 50-54 RC for maximum wear resistance. Each hammer is tested on our certified Rockwell hardness tester and provided with a test certificate. Suitable for use only in match competition 1911 pistols.