AR9 80% Lowers
Build the ultimate PCC (Pistol Caliber Carbine) with our AR-9 80% Lowers. Machined from 6061-T6 Billet Aluminum, these receivers are dedicated 9mm platforms designed to accept standard Glock magazines. No conversion blocks needed—just a sleek, purpose-built lower that feeds reliably and looks incredible.
Why Build an AR-9 on 6061 Billet?
Dedicated 9mm Design vs. Conversion Blocks
Many 9mm builds rely on "magwell adapters" shoved into a standard AR-15 lower. These are prone to failure and look clunky. Our AR-9 80% Lowers are CNC machined specifically for 9mm magazines. This means the magwell is flared and cut for Glock mags right out of the box, ensuring superior reliability and a cleaner aesthetic.
The 6061 Advantage for PCCs
Because pistol caliber blowback systems can be dirty, you need a finish that cleans up easily. Our 6061 Billet offers a smoother surface finish than forgings, making it easier to wipe down carbon buildup after a range day. Plus, the superior corrosion resistance of 6061 protects the magwell from the wear and tear of constant reloads.
Glock Magazine Compatibility
Our lowers are designed to work with the most common pistol magazine in the world: the double-stack Glock mag (G17/G19). This allows you to share ammunition and magazines between your sidearm and your primary carbine.
