This AR9 80% lower is cut from 6061-T6 billet aluminum, not cast. That means tighter tolerances right out of the box – no slop around your magwell or takedown pins. The Type III hardcoat isn’t just for looks; it’s the same Mil-Spec finish used on duty-grade rifles. We’ve seen too many cheap AR9 lowers crack at the buffer tower, but the billet construction here handles 9mm’s straight blowback without flexing.
The enlarged magwell ramps aren’t just marketing. They actually work with both OEM GLOCK mags and aftermarket ETS mags – no jiggling or misfeeds. Integrated trigger guard means one less weak point, and the fire/safe engravings are deep enough to stay legible after cerakote. This isn’t a range toy lower; it’s built for high-round-count builds where reliability matters more than price tags.
- Machined from solid 6061-T6 billet (not cast)
- Type III hardcoat anodizing – same as Colt/FN contract rifles
- Tested with OEM GLOCK and ETS mags – no feed ramp mods needed
This is the lower you buy when you’re building an AR9 that needs to run hard, not sit in a safe.
Product Details
A new AR9 80% Lower Receiver tailored for 9mm rounds\nThis AR9 80% lower receiver is machined from 6061-T6 billet aluminum using CNC for a precision cut design. It features Type III hardcoat anodizing and enlarged mag well ramps for quick and easy reloads. Compatible with GLOCK® OEM and Elite Tactical Systems magazines.\nAR-9 80% Lower Specifcations\n\nCompatibility: 9mm Parabellum\nConstruction: Billet 6061-T6 Aluminum\nFinish: Type III Hardcoat Anodizing\nColor: Matte Black\nFitment: 100% Mil-Spec\nFire/Safe Engraving: Yes\nFeatures: Integrated trigger guard, Flared magwell, GLOCK® OEM magazine compatibility\n100% Made in The USA
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