The Tactical Trigger Group is a completely self contained 100% drop-in fire control group upgrade for the AR-15 LR-308 and AR-10 rifles. Building on the original Super Match design the double patented Tactical Flat Trigger design yields truly remarkable and unprecedented trigger control trigger feel and accuracy while also the retaining the rugged reliability of a Mil-Spec trigger group. Trigger pull is factory pre-set between 3-1/2 and 4 pounds and is not user adjustable. Fits all standard Mil-Spec lower receivers with .154 trigger and hammer pin holes. - Trigger Bow: Standard Curved - Type: Single Stage - Adjustable: No - Drop In: Yes - Pull Weight: 3.5 lbs.-4.0 lbs. - Weight: 0.4 lb