CMC Triggers AR-15 Customizable Lower Receiver Parts Kit - Premium Quality, Precision Fit

Building an AR-15 from a stripped lower receiver gives you total control over every component—but stock lower-parts kits often bundle in a mil-spec trigger you'll never use. The CMC Triggers AR-15 Customizable Lower Receiver Parts Kit strips away that waste and lets you spec your own trigger, hammer, and springs instead. You get all the smaller components you actually need to complete a lower receiver, each one meeting or exceeding military specifications, without paying for redundant parts destined for the discard pile.

This kit is built for builders who know what they want. Whether you're planning to drop in a match-grade trigger, a lightweight competition unit, or a precision two-stage, the CMC approach respects your vision and your budget. All included parts are precision-fit and mil-spec rated, so you're not compromising on quality—you're just eliminating the guesswork and forced choices that come with one-size-fits-all kits.

After installing the components from this lower-parts kit, you'll still need to source a trigger assembly, buffer tube, stock, and pistol grip to complete your build. That modular approach means you can tailor every element of your rifle to your shooting style, whether it's long-range precision, 3-gun competition, or reliable field duty.

Key Features

• Trigger, hammer, and associated springs excluded—choose your own premium components
• All included parts meet or exceed military specifications
• Precision-fit components for reliable assembly
• Eliminates waste by removing unwanted mil-spec parts
• Ideal for AR-15 builders with specific trigger and hammer preferences

Frequently Asked Questions

What parts are NOT included in this lower-parts kit?

The kit excludes the trigger, hammer, and their associated springs. This gives you the freedom to source a trigger that matches your needs without paying for a mil-spec unit you won't use.

What do I still need to complete my lower receiver?

After installing this kit's components, you'll need to add a trigger assembly, buffer tube, stock, and pistol grip to finish your lower receiver.

Are all the parts mil-spec?

Yes, all components included in this kit meet or exceed military specifications.

Is this kit compatible with standard AR-15 platform lowers?

This kit is designed as an AR-15 lower-parts kit and includes components for that platform. Verify compatibility with your specific lower receiver.