Rated 5/5 based on 4 customer reviews
Item Number: TR-TTU-9MM
 Review Average:  
 Number of Reviews: 4
 View ReviewsReview this item
In Stock

Detailed Description


Wilson Combat has developed a new pistol caliber compatible, match grade AR trigger that solves the durability and reliability issues caused by excessive bolt speed in many pistol caliber, blowback AR carbines.  This new TTU model is compatible with all pistol caliber carbines that accept AR-15 style triggers with .154” pinholes.


  • 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 TTU 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 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 TTU The Safest AR Trigger on The Market and Allows The TTU to Meet or Exceed Military Specifications For Drop Safety
  • Bullet Proof® Design Is Engineered and Extensively Tested By Shooters For Shooters
  • The Tactical Trigger Unit Has Raised The Bar in AR Trigger Design and Function…

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

Introducing the TTU, an all-new modular trigger unit that is easily user installed in any AR pattern rifle in less than 1 minute. Exclusive Wilson Combat engineering enables a durable, 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 TTU 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 Tactical Trigger Unit has raised the bar for drop-in AR triggers.

Wilson Combat AR-15 Tactical 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 TTU.  
  • Colt rifles produced with pinned-in sear blocks are not compatible with any Wilson TTU.
  • Wilson Combat 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 it is recommended that the standard single stage TTU (TR-TTU) or two stage TTU (TR-TTU-M2) trigger be used 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.
  • The TR-TTU-9MM is compatible with Sig MPX


 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.

 Product ReviewsClick here to review this item
Thank you Wilson Combat!
This trigger is a big contributing factor why I bought the Colt AR-15 9MM. I’ve learned from watching some of the better YouTube videos that the 9s are really hard on trigger assemblies; it has to do with bolt velocity. I was very happy to see Wilson Combat tackled this problem. The first stage on this trigger is shorter than most. It’s like a hybrid between a single stage and a 2 stage trigger. Once you hit the wall, there’s no more movement. It’s impressive.
9mm non-convert
I had purchased this trigger for an SBR that I converted from 300blkout to 9mm. Trigger is absolutely perfect. It feels awful, awful nice. Really nice second stage break. The whole project was a disaster, so I then converted the SBR to .223 Wylde. I can't come up with a reason why I wouldn't keep using this same trigger. It's sure working out so far. If I had it to do over, these TTUs would be the only trigger I own.
Huge upgrade from the stock PMX trigger.
I was so excited to get my Sig MPX and then I pulled the trigger :-( What a piece of junk! I can't believe Sig can make the trigger that bad especially when you consider the premium price you pay for a MPX. Wilson Combat to the rescue! This is the first upgrade anyone with a MPX should do. It really transforms the gun. Perfect pull and take-up, no grit or dead space. Clean, repeatable breaks with quick reset. Follow up shots are super quick and you'll end up putting way more rounds through the MPX than you think. This is also a great trigger for any PCC built on the AR-15 platform. Thanks Wilson!
Great Upgrade for the Sig MPX
With few options to improve the MPX trigger, Wilson Combats option is one of the only available today. So naturally I was skeptical concerning how good it would be. I can honestly say after range time with the trigger that it far exceeded my expectations. First shot was smooth and the short reset made the following shots easy to keep on target. This trigger is a must for your Sig MPX.