AR-9 80% Lower Receiver, Billet 9mm – Fire/Safe Marked

$93.49

Build a solid 9mm PCC right. This is the foundation you need.

This isn’t a generic lower. We spec’d this AR-9 80% lower from solid 6061-T6 billet aluminum for one reason: durability where it counts. The 9mm blowback system is tough on parts, so we started with a tougher block of aluminum than typical forged lowers. Our CNC machines finish the job, giving you a precision-milled starting point for a reliable build.

The details matter. It comes with a Type III hardcoat anodized finish—that’s the good, wear-resistant stuff you find on duty-grade gear—in a clean matte black. The fire and safe markings are already deeply engraved for you. No guessing, no messing with puns. It’s professional and ready.

Function is built in. The mag well is flared and the ramps are enlarged. This isn’t just for looks; it means positive, quick reloads with your GLOCK® OEM or ETS mags when you’re moving or on the clock. The integrated trigger guard is one less part to worry about and fits any glove.

Build it your way, but build it on a proven platform. This lower accepts standard mil-spec AR-15 lower parts kits and pistol braces/stock components, giving you total control over the final configuration. You know what parts you trust—this lower is designed to work with them.

Note: This is an 80% lower receiver. It requires machining to completion and is intended for personal use by individuals legally permitted to manufacture a firearm for their own possession. Check all local, state, and federal laws before purchasing or starting your build. Polymer80Market.com is not responsible for compliance.