The CMC trigger group is a completely self contained, 100% drop-in fire control group for the AR-15, LR-308 and AR-10 rifles. The double patented 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 most standard Mil-Spec lower receivers with .154" trigger and hammer pin holes. Available in the single stage model with flat or curved trigger. Comes with anti-walk trigger pins. Price is $179.95.