Machined from billet aluminum, the Armaspec AR-15 S2 Enhanced Trigger Guard provides more space inside the trigger well for shooters with large hands or oversized gloves. An added benefit of this design is the improved contour that eliminates the space between the grip and trigger guard often seen with mil-spec trigger guards. Despite this seamless fit, the Armaspec S2 Enhanced Trigger guard drops into any mil-spec AR-15 lower receiver with no fitting required. Along with the guard itself, you'll get the setscrew, hex key and roll pin needed for installation. The guard is compatible with all 5.56/.223 and 7.62/.308 lower receivers on the market, and this USA-made component is covered by the company's lifetime warranty.