Rated 4/5 based on 1 customer reviews
Item Number: TR-ETU
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Detailed Description

Introducing the Enhanced Trigger Unit

We have taken our modular AR trigger units and enhanced their performance with the addition of the most advanced black DLC (Diamond-Like-Carbon) physical vapor deposition finish available. This finish on critical action parts has chromium and tungsten underlayers for long-lasting corrosion and abrasion resistance. This ultra-hard surface finish will ensure that your ETU maintains a smooth, crisp pull when heavily fouled, reduces wear, and resists corrosion from hot powder gases.

  • Exclusive Wilson Combat® Engineering Has Created a Truly DROP-IN Trigger Unit With an Ultra-Crisp Trigger Pull That Does Not Require Any Fine Tuning or Adjustment By The End User.
  • Simple, 1 Minute Drop-In Installation
  • NO Adjustment Screws to Ever Shoot Loose
  • NO Loose Parts to Misplace, The ETU Is a Totally Self-Contained Trigger Module
  • All Components Are Precision CNC Machined and/or EDM Cut From Solid Bar Stock
  • Hammer, Trigger and Disconnector Are Manufactured From Virtually Indestructible H13 Steel and  Heat Treated with DLC Finish For Maximum Wear Resistance
  • Hammer, Trigger and Disconnector Pivot on Hardened Steel Bushings So NO Wear or Stress Is Imparted on Your Receiver Pin Holes or Pins
  • Positive Trigger Reset Guarantees a Quick Follow Up Shot on Target
  • The Unique Hammer Geometry Enhances Reliable Ignition With Military and Surplus Ammunition of All Types
  • Wilson Combat® Exclusive 1911 Style Half-Cock Notch Makes The ETU The Safest AR Trigger on The Market and Allows The ETU to Meet or Exceed Military Specifications For Drop Safety
  • Bullet Proof® Design Is Engineered and Extensively Tested By Shooters For Shooters
  • The Enhanced Trigger Unit Has Raised The Bar in AR Trigger Design and Function…

Exclusive Wilson Combat engineering enables a durable, 3.5 - 4 lb., ultra-crisp trigger pull without any fine tuning or adjustment. Reduced, positive trigger reset guarantees a quick follow up shot on target. The unique hammer geometry enhances reliable ignition with military and surplus ammunition of all types while a 1911 style half-cock notch allows the ETU to meet or exceed military specifications for drop safety. Pre-assembled, CNC machined trigger housing contains H13 heat-treated trigger, hammer, sear and a stainless steel spring for trouble-free installation. Bullet Proof designed and extensively tested by shooters for shooters, the new Enhanced Trigger Unit has raised the bar for drop-in AR triggers.

Wilson Combat AR-15 Enhanced Trigger units will reliably function 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 will generally have a proprietary trigger pin size of .169” and are not compatible with any Wilson ETU.  
  • Colt rifles produced with pinned-in sear blocks are not compatible with any Wilson ETU.
  • Wilson Combat ETU 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 ETU Two Stage Models (TR-ETU-M2).
  • With .22 LR AR conversions or complete .22LR caliber  AR-pattern rifles it is recommended that the standard single stage ETU (TR-ETU) or two stage ETU (TR-ETU-M2) trigger be used along with high or hyper-velocity ammunition for best reliability.
  • The ETU 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.


Because of the short, fast reset of the ETU, always use a firm grip and solid hold when shooting from the bench or prone to ensure that bump firing does not occur.

 TTU Single Stage - Installation Instructions


"I have put your single stage AR trigger on all of my private rifles and several of the school's rifles. These include Bushmaster 9mm, S&W 15-22 and several other AR-15 / M-4 clones. The triggers work flawlessly."

Bill Rogers, Rogers Shooting School



Article on Wilson Combat TTU 

Courtesy of InterMedia Outdoors.

Tactical Trigger Unit Comparison Chart

 Product ReviewsClick here to review this item
Nice but doesnt work with 50 degree safety
The trigger itself is very crisp with almost zero creep. It however doesn't like my 50° safety selector. I knew 45 was a problem but thought 50° was gtg. I can trip the sear with the safety on. On my .308 with the 90° safety its beautiful. Wish I got it to work with my 5.56 though.