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Factory mil-spec triggers get the job done, but most of us can feel the gritty take-up and mushy break the first time we run something better. The CMMG Zeroed Drop-In Trigger fixes that without turning your AR project into an all-day gunsmithing session. It runs a single-stage 4-4.5 lb pull with a clean break and a short reset, which is the kind of trigger feel that makes follow-up shots faster and groups tighter.
What sets the Zeroed apart from a lot of aftermarket triggers is that CMMG tuned it to reliably ignite even the toughest primers, including the harder cups you find on a lot of steel-case ammo. That means you get a lighter, cleaner pull without having to babysit your ammo choices. It's built from steel components and weighs in around 2.6 oz, so it holds up to hard use while keeping things responsive.
This one plays nice across the AR family. It's compatible with AR-15, AR-10/LR-308, Mk47, and CMMG's DISSENT platforms, so whether you're building a compact defensive gun or a long-range precision rifle, the Zeroed fits the bill. It's the same fire control group CMMG runs in their own firearms from 2024 onward, which tells you they trust it in their factory guns.
Being a self-contained cassette-style unit, install is about as painless as trigger swaps get. You pop out your old trigger, drop this one in, and secure it with the included Zeroed anti-walk pins. Those pins are worth calling out since cassette triggers are notorious for mil-spec pins wanting to walk out the side of the receiver under recoil. CMMG includes their own set with Torx screws to keep the fire control group locked in place. The whole job takes most folks a few minutes with basic tools, and CMMG backs it with their Lifetime Quality Guarantee.
The Zeroed is compatible with a wide range of AR platforms including AR-15, AR-10/LR-308, Mk47, and CMMG's DISSENT rifles. It's designed to fit standard .154 inch diameter pin receivers, which covers the vast majority of AR builds. If your lower uses standard mil-spec pin holes, you're good to go.
It's a self-contained cassette-style drop-in unit, so installation is straightforward and requires no gunsmithing. You remove your existing trigger, set the Zeroed in place, and lock it down with the included anti-walk pins and Torx screws. Most people knock it out in a few minutes with basic tools.
The CMMG Zeroed is a single-stage trigger tuned to a 4-4.5 lb pull. That range gives you a noticeably cleaner and lighter break than a typical mil-spec trigger while still keeping a safe, controlled feel. It pairs a crisp break with a short reset for quick follow-up shots.
Yes, CMMG built this trigger specifically to ignite even the toughest primers, including the harder cups common on steel-case ammunition. That's a real advantage over some lighter aftermarket triggers that can struggle with stubborn primers. You get the lighter pull without giving up dependable ignition.
| UPC | 810103479227 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 55CA7FB |
| Color | DROP IN TRIGGER GROUP |
| Length | 5.6500 |
| Model | |
| Shipping Weight | 0.217 |
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