Based in a state-of-the-art facility in Phoenix, Arizona, Timney Triggers are crafted through a combination of expert workmanship that includes precision machining, hand assembly, calibration, and testing. Their commitment to building "The World's Finest Triggers" has led their products to be integrated exclusively by some of the world's best custom gun manufacturers. Today, Timney produces more than 170 trigger models for bolt-action, AR, and semi-automatic rifles as well as for shotguns and archery. Timney has been asked for an AR trigger at a lower price without compromising on quality for budget-build AR s. You asked, Timney listened. The Impact will give you a crisp, clean, 3 pound break and will drop in to all Mil-Spec AR s. All components are captive in the lightweight, aluminum alloy housing. Hammer is wire-EDM machined from S7 tool steel that combines hardness to resist wear with superior impact resistance to withstand heavy use without chipping or breaking. Other components are EDM cut from A2 tool steel, then heat treated to Rc 56-60 for long service life. Installs using your rifle s original hammer/trigger pins, the proprietary design eliminates pin walkout. Product Features Self-Contained Drop-In Trigger, No Gunsmithing Required Trigger Pull Weight: 3 lbs Straight Heat-Treated Tool Steel Trigger and Sears Black Fits: AR15 Style Rifle Models