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Questions & Answers
I have an AR 15 S&P model. Do I want small pin or large pin? Expert Answer

You will want a small pin trigger.

by Armando R., Gear Expert, February 15, 2021
Will this fit rock river m4 carbine small pin or larger pin? Expert Answer

The CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger will fit a Rock River Arms R4 Carbine and you will need the small pin.

by Hunter, Gear Expert, July 11, 2023
Customer Reviews
Helpful Positive Review
Excellent Trigger by Bilbo, Verified Owner, January 24, 2025
This trigger is truly nice. Installation was easy. Zero take up. Glass like break. Extremely short reset. Two and a half pound pull is awesome. Well worth the money. Happy mag dumping.
1/1 found this helpful
Helpful Positive Review
CMC Single stage drop in trigger by Mo, Verified Owner, August 31, 2024
I have this trigger on about 5 rifles. Awesome trigger, quality materials and a great brand. No creep, fast reset. About 2.5/3lb trigger pull. You can’t go wrong, get it.
1/1 found this helpful
Helpful Positive Review
listen linda by Stetson Beasley, Verified Owner, September 13, 2024
I have bought 3 different triggers at roughly the same price point and this is the ONLY one I would recommend. I’ll definitely be getting another one of these.
1/1 found this helpful
Helpful Positive Review
Snappy Single stage by Austin B, January 24, 2025
Building a duty style rifle i wanted a super crisp trigger with no take up at all and I have found it. This trigger has a super clean break, doesn't move until the break and a super short reset. The flat face is nice but could use some serrated faces...
Read More...
1/1 found this helpful
Helpful Positive Review
Best AR trigger on the market by Joey, Verified Owner, January 10, 2025
Triggered breaks like glass. 10/10 would recommend
1/1 found this helpful
Helpful Positive Review
Learn how to build your gun correctly please. Follow the instructions very close and torque the Screws to using a FAT WRENCH. TO BE DEAD ON. WHEN IN DOUGHT OF HOW MUCH JUST CALL THE THE COMPANY YOU BOUGHT IT FROM
1/3 found this helpful
Read All 123 Reviews

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Product Info for CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger

Answering the demand from the nation's top 3 Gun competitive shooters for lighter AR Triggers with all the amazing attributes of our premium Match Grade CMC Triggers! Thanks to our multi-patented designs, a fine match grade trigger pull is now an extremely simple upgrade to implement. Install the fully self-contained, ready-to-go trigger group, safety check, and it's done. CMC Triggers is the original manufacturer of the Drop-in Trigger Group for the AR-15/10 rifle since 2003. CMC's critical sear engagement surfaces have a proprietary machining process that renders superior surface finish and dimensional control. As compared to their competition, the techniques used to establish a 1-2 RMS surface finish as opposed to EDMing which leaves a pithy 32 RMS, compared to a mirror which is 0 RMS.image

WARNING: California`s Proposition 65

Specifications for CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger:

Manufacturer: CMC Triggers
Trigger Material: Steel/Aluminum
Trigger Pull Weight: 2.5 lb
Trigger Pin Size: Mil-Spec
Gun Model: AR-10, AR-15
Condition: New
Length: 7.15 in
Height: 1.05 in

Features of CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger:

  • Ultra-crisp trigger with no feel of creep prior to hammer release
  • The trigger has a glass-smooth break with no feel of grittiness
  • 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

Package Contents:

  • CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger

CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger Orderable Models

List of Orderable Models

  • CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger, Tactical Flat, 2.5 lb Pull, 90503 , MPN: 90503 , UPC: 859464006512 , Code: 1TA-ART-CMC90503-90503
  • CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger, Curved, 2.5 lb Pull, 90501 , MPN: 90501 , UPC: 859464006505 , Code: 1TA-ART-CMC90503-90501

CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger, Curved, 2.5 lb Pull, 90501 , MPN: 90501-DEMO , Code: 1TA-ART-CMC90503-90501-DEMO
  • USED CMC Triggers AR-15/AR-10 Single Stage Drop-in Competition Trigger, Tactical Flat, 2.5 lb Pull, 90503, EDEMO4, Condition Fair, Other , MPN: 90503-EDEMO4 , Code: 1TA-ART-CMC90503-90503-EDEMO-OT-D
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