CMC AR-15 / AR-10 Single Stage Drop-in Trigger - Curved Bow

Pull Weights available: 3.5, 4.5, 5.5 & 6.5

CMC Triggers innovative, self-contained, and easy-to-install AR-15 trigger groups, have been completely re-tooled to maximize production capacities, incorporate new design enhancements and reduce cost. CMC Triggers AR-15 drop-in trigger groups have always yielded exceptional trigger pull dynamics for our tens of thousands of satisfied customers.

Availability: In stock


* Required Fields



CMC AR-15 / AR-10 Single Stage Drop-in Trigger – Curved Bow

CMC Triggers innovative, self-contained, and easy-to-install AR-15 Trigger Groups, have been completely re-tooled to maximize production capacities, incorporate new design enhancements and reduce cost to the customer. CMC Triggers AR-15 Drop-in Trigger Groups have always yielded exceptional trigger pull dynamics for our hundreds of thousands of satisfied customers.

CMC’s AR-15/10 “Classic” Curved Drop-in Trigger Group is for the shooter who wants a traditional feel. The Curved Trigger has an exceptionally smooth feel and ultra-clean break. With excellent lock time and lighting fast positive reset, the CMC Curved Trigger is unsurpassed by any other fire control group.

Our critical sear engagement surfaces have a propriety machining process that renders superior surface finish and dimensional control. As compared to our competition, the techniques we use establish a 1-2 RMS surface finish as opposed to EDMing which leaves a pitty 32 RMS at best. Compared to a mirror which is 0 RMS, this is what sets the CMC Trigger apart from it competition.

CMC Triggers sear engagement overlap is up to 6-8 times greater than our competitors. This provides a much safer trigger and enhances reliability.

  • Single Stage Match Trigger
  • Available Pull Weights: 3.5, 4.5, 5.5 & 6.5
  • Ultra-crisp trigger with no feel of creep prior to hammer release
  • Trigger has glass-smooth break with no feel of grittiness
  • Minimal lock time is designed into the assembly using controlled hammer weight and balance activated by a rocket wire hammer spring, assuring repeatable function with either commercial or military grade ammunition
  • Trigger pull is factory pre-set and not user adjustable
  • Positive trigger reset allows a quick follow up shot on target
  • Hand assembled, and hand tested
  • Totally self-contained one-piece assembly
  • Comes with CMC Anti-Walk Pin Set
  • Fits MIL-SPEC AR-15 and AR-10 style rifles
  • Made from 8620 Alloy Steel and S7 Tool Steel with machined tolerances of +/– .001"
  • Easy to install - Install Instructions


Customer Reviews (20)

As good as Timney for less $Review by David P
I own multiple RRA 2 stage match triggers, Timney triggers in multiple ARs as well as in Mauser bolt action rifles. My experience is CMC is just as reliable and a little bit cheaper.
I will definitely look to CMC when I have another build.
(Posted on 10/7/2018)
Awesome TriggerReview by Joe
Leo/ Firearms Instructor. Great product, will be ordering more in the future. CMC has awesome customer service. Always nice to purchase a product from a company that supports law enforcement. (Posted on 7/22/2018)
Awesome triggerReview by Oswald
Gotta love Texas made triggers! CMC stage one is awesome on my ar-10 and compares to the higher end triggers for less money I’d buy a cmc for everything I own and not look back. (Posted on 5/13/2018)
Nothing but the bestReview by Jared Noble
I've had experience with a fair share of different aftermarket trigger offerings for the AR and without a doubt, the CMC Single Stage Flat is my favorite.
Ridiculously easy install(it was actually the first thing I ever put into a rifle I was building). The take up is minimal and almost absent entirely with a nice crisp break. Reset is both tactile and audible making for really easy trigger control and fast follow ups. I have one in my AR9, AR15, and AR10(soon to be replaced by the 25lb'er that just released) and they all work flawlessly. My father in law is a a recent convert from Geisselle and is thankful for me showing him the light. Aside from the performance of the triggers, CMC is run by a great group of people and I am glad to support them.
(Posted on 4/2/2018)
Love itReview by MikeyB
This trigger is exactly as advertised; it took me just a few minutes to install and it works perfectly. I don't like a trigger that has some take and this one doesn't, it's right there. I got the 3.5lb and it's perfect. So much better than the original. I had trouble shooting longer range, like out to 300 plus with the stock trigger because it takes so much to pull it. This trigger fixed that. I've made shots out to 500 on a 12" plate and I know I couldn't do it with the stock trigger. HIGHLY RECOMMEND! (Posted on 2/20/2018)
Easy install/ amazing resultReview by K. Smith
HIGHLY satisfied with this trigger. Got it for Christmas, and couldn't wait to drop it in. Took 10 minutes, from start to finish. Ran plenty of rounds through it with no issues after initial install.

Everything you need, minus a brass hammer and a 1/4" allen key, comes with the kit.
(Posted on 1/4/2018)
Best Customer Service Ever!!!Review by Steve
Picked up a flat 3.5# single stage. Last week I had an issue with it. 3 times trigger jammed & would not fire. When I returned home, I could not duplicate it.
Called CMC and explained the problem. Told to send it to them for inspection. I asked about upgrading to 2 stage and was told I could do that for a small fee.
That day I mailed it to them. They received it and mailed out the upgrade the same day.

CMC Single stage trigger is 400% better than a polished MIL-SPEC with lightened springs.
CMC 2 stage is 200% better than their single stage.
Best customer service & best trigger I have experienced in 70 years.

(Posted on 11/17/2017)
super clean an icicle... Review by mattysan
Installed on a Ruger SR-762...factory trigger was....ok...this is super take up, just tension on the trigger shoe, then...BOOM...trigger breaks like an icicle...clean and crisp. Super easy install as well. I will drop the dough for CMC triggers for all my AR platform rifles without hesitation...well worth the price... (Posted on 6/24/2017)
The absolute best of both worldsReview by Marv
First and foremost I just called to ask a few questions. I was invited to shop around for their product at a cheaper price, wow. Then the other place sent me the wrong pull weight. CMC's staff offered to make it right regardless free of charge including free return shipping.
I was already sold on the fact that they are a family owned business that operate with Christian based values and principles.
Honestly, I don't know which is better, the trigger itself or the customer service.
Will be a repeat customer. Thanks Patrick, Angela, and Calli. (Posted on 4/20/2017)
Blown Away!Review by Eric
I just installed this trigger in my M&P 15 and WOW! What a difference. This trigger is smooth as silk! The installation took less than 5 minutes, and has been one of the best upgrades I've done to my AR. Plus love purchasing a product from a Christian based company! (Posted on 4/7/2017)
Awesome trigger CMCReview by Ben
Easy installation very affordable...this will be my go to for drop in triggers, installed a 4.5 curved single stage in my 6.8 and love it.
Thanks, CMC. (Posted on 3/31/2017)
Click, WOW!Review by The Capt
Saw a 3.5 lb curved sample at a gun show while looking for a stock. I asked the merchant what it was. He said "CMC". I couldn't stop pressing it. Closed my eyes and kept pressing it. Just kept thinking, "that is smooth". I apologized for pressing it so many times so I bought one. It's pretty sweet. Love my CMC Power 10 mags for my 1911 too! (Posted on 3/20/2017)
Best trigger on the marketReview by Rumham
I have shot many rifles and all of those rifles with different triggers and I have to say, in my opinion of course, that this is the best trigger on the market. when I let other people shoot my rifle that is the first the first thing they mention, how smooth and crisp and light the trigger is. Ive had it for about five years now and will never buy another trigger for any of my future builds. Thanks cmc and God bless! (Posted on 1/14/2017)
Easy Installation on 4.5 lb curved triggerReview by LS
I replaced the standard trigger on my LMT AR lower with the CMC drop in assembly in about 20 minutes. The instructions clearly written and easy to understand. The trigger assembly went in easily.
The pins supplied with the trigger will be tight so a little care is called for during installation. I used a drift punch to protect the pins internal threads. Prior to installation the pins and screws were degreased followed up with a film of oil applied to the pins outer surfaces. After the pins were installed I put blue locktite on the screw threads and tightened using the 2 torx wrenches supplied in the package.
What a difference this CMC trigger makes. I'm very satisfied with this uparade to my AR. (Posted on 7/30/2016)
Great Trigger!Review by DHK
I bought two of these triggers and installed them in both of my AR15s. I wanted consistency of trigger pull at 3.5 lbs. With these triggers I enjoy excellent accuracy and consistency of pull between my rifles. I am working on an AR10 at present and it is my plan to put one of these in that rifle also for exactly the same reasons. If anyone tells you that a trigger like this is unimportant for accuracy, then you should know that they are blowing hot air. They do not know what they are talking about. The 3.5 pound trigger is a marvel of modern shooting for the AR platform. Get one! (Posted on 2/29/2016)
I LOVE my CMC'sReview by Steven
I have a total of 5 CMC triggers now. 2 curved and 2 flat. I love them all. I just bought a new 2 stage and cant wait to try it out. (Posted on 2/11/2016)
Great triggerReview by Royce
For the money this is by far the best trigger on the market I would put it up against Timney Mil-Spec Factory Triggers, ALG Defense Enhanced Triggers and yes even Geiselle SSA and it's Variants I have used every one of them all good choices but for the money CMC out performs them all. Now CMC needs to design a AR10 .308 version of this with a stronger spring to ensure the .308 primer strike is executed 100% of the time and when they do I will be ordering them.

Thanks CMC great trigger. (Posted on 2/10/2016)
East installation, quality, quick setReview by Bugs
CMC will be in all my future builds. Drop in install with tight alignment, great retention pins with secure pin screws, and outstanding reset for quick and crisp firing. I also love that CMC in a Christian company and right here in the good ol' USA! (Posted on 1/10/2016)
Great trigger easy to installReview by HaanSolo
I was in the process of building an AR15 based off the 6.5 Grendel round. If you know anything about the round, then you know how capable it is. However, I needed a trigger to meet the performance of round, and especially when you need to get a well placed shot on coyotes. This met all my parameters of trigger pull of 3.5 lbs, crisp break while I pulled the trigger, short reset, and under $200 dollars. This came up over and over again. So I pulled the trigger and bought it! It's super easy to install being that is self-contained. So far a thousand rounds and not a single hiccup. It's pretty sweet that it's American made. (Posted on 1/5/2016)
Best AR Trigger on the Market !!Review by Max
I used all sorts of aftermarket triggers and this one is the most consistent and precise feel of all the ones I have used. I am a big fan of this trigger because it is built into a cartridge, which gives it the same precise release regardless of whatever gun you install it on. The other triggers like Jewell or Geissele will feel different because the trigger pin holes are not all in the same place on every lower, so the trigger and the sear engages differently on different lowers, so it feels different. Customer service was excellent also. I sent mine in to change the pull from a 3.5 lb to a NRA service rifle regulation 4.5 lbs, and they did it very quickly, and didn't charge me anything for the work. I am very pleased, and I'll be putting these in every build from now on. (Posted on 11/30/2015)

Write Your Own Review

You're reviewing: CMC AR-15 / AR-10 Single Stage Drop-in Trigger - Curved Bow

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars



Use spaces to separate tags. Use single quotes (') for phrases.