The CMC 10/22 trigger is a drop in self-contained trigger pack that is easy to install. This trigger is extremely well made much more durable than the standard stock Ruger trigger. CMC 10/22 Trigger utilizes the most advanced manufacturing and quality control techniques. CNC-machined and well made from a piece of aluminum billet. The coating is rust-resistant and corrosion-proof. The use of aluminum and precision CNC machining allows for greater internal clearance. This clearance reduces drag and friction and provides a smoother felt pull.