Manufactured in the USA by Timney Triggers the 661-S competition fire control group is one of the finest replacement triggers available. It is a simple drop-in assembly that does not require gunsmithing or spring manipulation, and features a smooth, crisp, single-stage three pound trigger pull. All of the trigger components are housed in a anodized 6061-T6 aluminum alloy cage for durability, and to ensure you're getting legendary Timney performance.

Features and Specifications:
Manufacturer Number: 661S
Single stage trigger, 3lbs
Anodized 6061-T6 cage
Skeletonized trigger
Manufactured in the USA

Fits:
.154" receivers; will not work on Colt AR-15 that have pins .168-.174" in diameter.