The Apex 1911 hammers are meticulously engineered to elevate your shooting experience with precision and reliability. Each hammer boasts precision-cut engagement surfaces, ensuring dimensional consistency and perfectly square hammer hooks for optimal performance. Drawing inspiration from the classic 1968 colt national match pistol, these hammers are designed to deliver an exceptionally clean and crisp trigger pull. Whether you're a competitive shooter or a firearm enthusiast, the Apex 1911 hammers provide the perfect blend of vintage design and modern engineering, enhancing both accuracy and control in every shot. The locations of the hammer hook and strut pin hole are based on a vintage 1968 colt national match pistol The hammer hook height is specified at 0.018 inches - 0.020 inches to ensure a consistent and clean trigger pull Incorporates a captive half-cock notch, similar to that found on MK IV series 70 colt pistols and is compatible with series 80 pistols For optimal performance, Apex advises pairing the hammer with a premium sear, such as the EGW hard sear (product #10040) Direct drop-in replacement component