The CMMG Mil-Spec Trigger Kit (brand part number 55AFF97) is a complete curved single-stage trigger group built on the original M16 trigger design, modified for semi-auto AR-15 use. CMMG packages everything needed for a full trigger group rebuild in one kit: hammer, hammer spring, trigger, trigger spring, disconnect, disconnect spring, and both the hammer and trigger pins. Because it’s built to Mil-Spec tolerances, it drops into a standard AR-15 lower without hand-fitting, making it a straightforward way to replace a worn trigger group or finish out a lower parts kit build.

Key Specifications

• Curved Single-Stage Design is based on the original M16 trigger, modified for semi-auto use.
• Hammer and Hammer Spring are included as a matched pair for reliable ignition.
• Trigger and Trigger Spring are included as a matched pair for a consistent pull.
• Disconnect and Disconnect Spring are included to complete the fire-control group.
• Hammer and Trigger Pins Included completes the kit without sourcing separate pins.
• Mil-Spec Tolerances allow a drop-in fit with no hand-fitting required.
• Curved Trigger Bow matches the traditional AR-15 trigger profile.

Frequently Asked Questions

What’s included in this kit? Hammer, hammer spring, trigger, trigger spring, disconnect, disconnect spring, and hammer/trigger pins.

Is this a two-stage trigger? No, it’s a single-stage design based on the original M16 trigger, modified for semi-auto fire.

Will this drop into my lower without fitting? Yes, it’s built to Mil-Spec tolerances for a standard drop-in fit.

Buy the CMMG Mil-Spec Trigger Kit, Curved Single-Stage, for AR-15

Rebuild your trigger group with a CMMG Mil-Spec Trigger Kit from our AR triggers selection. Order online and we’ll ship it straight to your door from our Lubbock, Texas gun shop.