Geissele’s G2S trigger drops into your AR-15 to deliver much of the high performance, smooth feel, and reliability of their SSA combat/CQB trigger at an economical price. The G2S offers a fixed 4½ lb. total pull weight, with a 2½ lb. first stage followed by a clean-breaking 2 lb. second stage that helps you stay on the target through the entire pull. All machined steel construction, with non-adjustable wire-EDM cut sear engagement surfaces. Fits semi-automatic AR-15/M16 receivers with .154" diameter hammer and trigger pin holes. May be installed on AR-style .308 rifles that accept AR-15 triggers. Kit includes trigger and hammer assemblies, springs, hammer pin, tube of grease and instructions. Matte black exterior finish.