CMC Triggers 91507 Drop-In Flat Trigger, 3.5 lbs Draw Weight, Black/Silver Finish for AR-15/AR-10

A drop-in flat trigger for AR-15 and AR-10 platforms, the CMC Triggers 91507 is built for shooters who want a crisp, predictable break without gunsmithing. If you're running a modern sporting rifle and tired of mushy factory hammer and sear geometry, this single-stage flat trigger replaces the stock trigger group in minutes—no tools, no fitting, no headaches. The 3.5 lb draw weight sits in that sweet spot: light enough for precision work and competition, heavy enough to feel safe and controllable on a duty or hunting rifle.

CMC has earned respect in the AR world by keeping their triggers simple and reliable. A flat trigger shoe appeals to shooters who prefer a broader contact surface and faster reset cycles. The black and silver finish is clean, professional, and won't stand out if you ever need to match an existing gun's cosmetics. Whether you're fine-tuning a precision build, refreshing a worn platform, or just want better trigger control on your next range day, this is the kind of small-dollar upgrade that changes how a rifle feels in your hands.

Compatible with both intermediate (.223 Remington/.556 NATO) and full-power (.308 Winchester/.762x51 NATO) AR derivatives, the 91507 is one of those parts that works equally well on a 3-gun rifle, a long-range hunter, or a general-purpose carbine. Drop it in, function-test, and go shoot.

Key Features

• Drop-in installation—no gunsmith required; swaps into AR-15 and AR-10 lower receivers
• Single-stage flat trigger shoe for increased trigger contact and faster lock time
• 3.5 lb pull weight: light and responsive yet safe and practical
• Black and silver two-tone finish
• Compatible with AR-15 and AR-10 platforms

Specifications

Frequently Asked Questions

What platforms does the CMC 91507 fit?

This trigger is designed as a drop-in replacement for AR-15 and AR-10 lower receivers. Verify your lower's trigger pocket dimensions before purchase to confirm compatibility.

Is installation easy, or do I need a gunsmith?

Drop-in triggers are designed for installation by the end user without specialized tools or gunsmith work. Simply remove the factory trigger group and install the CMC unit in its place.

What does a 3.5 lb trigger weight mean for my shooting?

A 3.5 lb pull is relatively light, offering a crisp, responsive break suitable for precision shooting, competition, and hunting. It's still robust enough for duty and general-purpose rifles where a slightly heavier trigger may be preferred for safety.

Why choose a flat trigger over a curved one?

Flat triggers provide a wider contact surface, which many shooters find more comfortable and easier to control during rapid fire. They also tend to offer a faster reset and more direct trigger feel.