Wilson Combat’s Tactical Trigger Unit (TTU) is a single-stage trigger that installs in any AR pattern rifle in less than 1 minute without user adjustment. Wilson Combat engineering delivers a 4 lb., ultra-crisp trigger pull with durable, reliable performance. The reduced, positive trigger reset enables quick follow-up shots, while the unique hammer geometry ensures reliable ignition with military and surplus ammunition of all types. A 1911 style half-cock notch allows the TTU to meet or exceed military specifications for drop safety. The pre-assembled, CNC machined trigger housing features an H13 heat-treated trigger, hammer, sear, and stainless steel spring for straightforward installation. Designed and extensively tested by Bullet Proof, the Tactical Trigger Unit sets the standard for drop-in AR triggers.
The Wilson Combat AR-15 Tactical Trigger Unit functions reliably in any standard USGI style AR style lower receiver with standard GI trigger pins of .154″ diameter regardless of caliber, including 7.62/.308 length AR receivers. Colt brand rifles made for commercial use between 1991 and 2009 generally have a proprietary trigger pin size of .169″ and are not compatible with any Wilson TTU. Colt rifles produced with pinned-in sear blocks are not compatible with any Wilson TTU. The TTU is not compatible with the Bushmaster ACR. The MR556 and any other AR style rifle with a firing pin safety mechanism in the bolt carrier is only compatible with the TTU 3G (TR-TTU-3G) or Two Stage Models (TR-TTU-M2). With .22 LR AR conversions or complete .22LR caliber AR-pattern rifles, the standard single stage TTU (TR-TTU) or two stage TTU (TR-TTU-M2) trigger is recommended along with high or hyper-velocity ammunition for best reliability. The TTU is compatible with the S&W MP-10 .308 AR but the rifle’s ambidextrous bolt catch must first be removed to install the trigger unit.
