The Timney 661s is one of the finest replacement trigger groups available and does not require gunsmithing; simply remove the old assembly and drop in the new assembly works with small pin .154 receivers only. Smooth crisp single stage three pound trigger pull housed in a lightweight 6061 T6 alloy is anodized for durability. Timney AR15 Skeletonized
The Timney AR Trigger options are compatible with Military Spec Built Lowers
Smith & Wesson MP 15/22 (recommend 4lb pull or higher)
22 Conversions Kits (recommend 4lb pull or higher)
CMMG 22 Conversion Kit requires the AR-10 Trigger
AMMO 223 American / 5.56 Nato
Colts with Sear Blocks will require removal of the sear block for the Timney Trigger to fit
