Timney Triggers AR-15 Competition Trigger 4 lbs Small Pin Black Curved 668S

Self-contained module is ready to install in your small-pin AR and deliver an exceptionally smooth crisp creep-free single-stage trigger pull that feels more like a traditional bolt action than a combat rifle trigger. 100% drop-in—no gunsmithing fitting or adjusting required. All components are captive in the lightweight aluminum alloy housing. Hammer is wire-EDM machined from S7 tool steel that combines hardness to resist wear with superior impact resistance to withstand heavy use without chipping or breaking. Other components are EDM cut from A2 tool steel then heat treated to Rc 56-60 for long service life. Precision-ground engagement surfaces ensure superb reliability and a crisp clean hammer release. Installs using your rifle’s original hammer/trigger pins; proprietary design eliminates pin walkout. 

Since it was founded in 1946 Timney Triggers has built a reputation based on the quality of its products. Because of the precision machining and workmanship that goes into each Timney product they are The World's Finest Triggers. Each and every Timney Trigger is individually tested and calibrated by hand in the action it was designed for before it's delivered to the customer's door. 

Compatible with all mil-spec AR-15/ M4 platforms including the large pin Colt Rifles made in the 90’s