With a reliable"" crisp 4.5-lb pull and insanely fast reset"" the Blitz Defense is a trigger you can trust. Whether it's in 9MM AR or AR-15"" the Blitz Defense provides the performance upgrades needed in a self-defense situation. Based on the popular Blitz Trigger"" the Blitz Defense sports a variety of serious performance upgrades. Follow up shots are a breeze thanks to its insanely quick reset. The wide"" comfortable trigger blade is better for control and leads to an icicle-crisp break. The blade sits further back in the trigger well"" leaving plenty of room if you have bigger hands or are wearing gloves. The Blitz Defense is contained in a blue anodized housing that's machined from a solid block of 6061 aluminum"" which is more durable and longer lasting than punch-tin housings to help the trigger perform flawlessly under a variety of conditions. Installation is simple