Polymer80Central Forged 80% Lower Receiver – Fire/Safe Marked, Anodized Black

This is the one that started it for a lot of builders. Our original forged 80% lower isn’t just a part; it’s the foundation. We’ve sold tens of thousands, and they’re in service right now. If you want to build an AR-15 that’s truly yours, this is where you start.

Forged from a solid block of 7075-T6 aluminum—the same spec as issued military receivers—this blank is built for a lifetime of hard use. We don’t cut corners. It gets a proper Type III Hardcoat Anodizing for a durable, matte black finish that will match any mil-spec upper you pair it with. The magwell is broached clean, and the fire and safe markings are deeply engraved, right where they should be.

This is a straightforward, no-nonsense component. It’s 100% mil-spec, which means every standard AR-15 parts kit, trigger, grip, buffer tube, and stock on the market is designed to fit it. Build it into a 5.56 NATO rifle, a 300 Blackout hunter, or a 6.5 Grendel precision rig. The platform is proven, and the compatibility is total.

The best part? It’s entirely made here in the United States, from forging to final finish. You’re not just building a rifle; you’re finishing an American-made forging.

At $59.40, this is the benchmark for quality and value in an 80% lower. You get a rugged, forged foundation without paying for fancy branding or unnecessary features. It’s a tool, and it’s ready for you to put your mark on it.

Specifications & Details:

• Model: Standard 80% Lower Receiver
• Caliber Compatibility: 5.56 / .223 Rem, 300 AAC Blackout, 6.5 Grendel
• Material: Forged 7075-T6 Aluminum
• Finish: Type III Hardcoat Anodized (Matte Black)
• Fire/Safe Markings: Yes, Engraved
• Magwell: Broached
• Fitment: 100% Mil-Spec
• Origin: Made in the USA

Note: This is an 80% lower receiver. It requires machining to completion and is intended for personal use in building a firearm. You must follow all applicable federal, state, and local laws. It is not a firearm and is not sold with a serial number.