The 650ST Timney Triggers present exceptional precision machining and craftsmanship. Every trigger is individually hand-tested and calibrated to ensure the highest quality. The RPR Trigger, a trademark of Timney\'s, is a fully self-sufficient, drop-in trigger.Made from military-grade, 6061 T6 alloy, the trigger housing is CNC machined to provide maximum durability and strength. In addition, the trigger itself is CNC machined, then heat-treated and coated for optimal performance.The sear undergoes a wire EDM cut and heat treatment before being coated with Teflon-nickel for superior lubricity and reliability. Fully compatible with your Ruger Precision firearm, this straight model trigger caters to your intricate precision needs.