JP Enhanced Bolt assembly completion group includes firing pin, cam pin and retainer pin for 5.56/.223/.300BLK calibers. This version of the bolt is compatible with any AR-15 platform using a Mil-spec bolt carrier and sub-components. The latest edition JP EnhancedBolt is made from SAE 9310 high-grade steel. This material makes for an extremely hard surface with a tough, ductile core resistant to structural failure and a life expectancy far exceeding Mil-spec C-158 bolts. SAE 9310 is the same type of steel used in the transmission gears of Formula One racecars, and the high-load application of a bolt assembly is ideal for this state-of-the-art material; the results of actual full-auto endurance torture tests prove it. The design of the JP EnhancedBolt addresses many other fine points, the most important of which is the utilization of a standard configuration extractor. Most users want the ability to replace extractors and other parts with commonly available Mil-spec parts instead of being dependent on proprietary parts that can be difficult to acquire. Therefore, this new bolt will accept standard extractors, pins and springs.