The CMMG Zeroed Drop-In Trigger (brand part no. 55CA7FB) is a black-finished, self-contained trigger module built to upgrade the feel of a mil-spec AR-15 or AR-10 lower receiver. Housed as a complete, pinned assembly, it’s engineered as a true drop-in unit, so it installs into a standard mil-spec fire control pocket without gunsmithing or hand-fitting. That makes it a straightforward way to replace a gritty stock trigger with a cleaner-breaking unit on a home-defense rifle, range gun, or hunting build. CMMG backs the Zeroed line with the same attention to tolerance the brand is known for across its AR-platform components.

Key Specifications

• Built as a self-contained drop-in trigger module for mil-spec AR-15 and AR-10 lower receivers.
• Finished in black to match standard AR fire-control components.
• Installs with no gunsmithing or hand-fitting required in a standard fire control pocket.
• Housed assembly measures approximately 5.65 inches in length.

Frequently Asked Questions

Does it fit both AR-15 and AR-10 lowers? Yes, it’s built as a drop-in unit for mil-spec fire control pockets on both platforms.

Do I need a gunsmith to install it? No, it’s designed to drop straight into a standard mil-spec lower without fitting.

Buy the CMMG Zeroed Drop-In Trigger

Swap out a gritty factory trigger for a self-contained module built to CMMG’s tolerances in minutes, not hours. Order the black Zeroed trigger from CMMG through our Lubbock, Texas gun shop for fast, direct shipping, and browse more AR triggers to keep tuning your build.