Timney AR-15 Drop-In Skeletonized Trigger 4 lb, Gold - 664S

Single-stage curved trigger for AR-15 platforms with a factory preset 4 lb pull weight. Made from steel and aluminum, this drop-in trigger installs using your rifle's original pins with no adjustments needed. The proprietary design eliminates pin rotation and walkout, and Timney recommends using a thin aluminum shim under polymer lowers for protection.