AR15 Anodized Lower Receiver [80%]

AR15 Anodized Lower Receiver [80%] Overview

The AR15 Anodized Lower Receiver [80%] is an unfinished receiver blank forged from 7075-T6 aluminum and finished with Type III hard coat anodizing in black. Unlike raw aluminum 80% lowers that require coating after machining, this receiver arrives ready to match your other mil-spec components right out of the box.

The fire control pocket remains unmilled and the pin holes undrilled, keeping this receiver classified as “not a firearm” under federal law. Complete the final machining steps at home, install your lower parts kit, and you have a finished lower identical in form and function to any stripped receiver on the market. Safe/Fire selector engravings are already in place.

7075-T6 is the mil-spec standard for forged AR-15 receivers: stronger and harder than 6061-T6, with superior resistance to stress and wear. Combined with the Type III hard coat anodize, this AR15 Anodized Lower Receiver [80%] is built for duty-grade durability. No FFL required. Ships direct to your door in most states.

What Makes the AR15 Anodized Lower Receiver [80%] Different

7075-T6 Forged Aluminum
This AR15 Anodized Lower Receiver [80%] is forged from 7075-T6 aluminum, the same material specified for military M16/M4 lower receivers. The forging process compresses the aluminum grain structure, creating superior directional strength compared to billet or cast alternatives. 7075-T6 offers higher tensile strength and hardness than 6061-T6, making it the preferred choice for hard-use builds.

Type III Hard Coat Anodized Finish
Type III anodizing (also called hard coat or MIL-A-8625 Type III) creates an extremely hard, wear-resistant oxide layer on the aluminum surface. This is the same finish specification used on military small arms. The black color is dyed into the anodized layer, not painted on top, so it won’t chip, peel, or rub off. Your finished lower will match other hard coat anodized AR components.

Safe/Fire Engravings Included
Selector markings are already engraved on the receiver: SAFE and FIRE in the standard positions. No need to add your own markings after machining. Install your safety selector and you’re ready to go.

Mil-Spec Compatibility
Machined to military specification tolerances, this 80% lower accepts all standard AR-15 components. Any mil-spec lower parts kit, buffer assembly, pistol grip, trigger, and upper receiver will fit without modification. Once you complete the fire control pocket and pin holes, your lower functions exactly like a factory mil-spec receiver.

Skip the Coating Step
With a raw 80% lower, you machine the fire control pocket and then need to coat the exposed aluminum to prevent corrosion. The AR15 Anodized Lower Receiver [80%] eliminates that step. Yes, machining will expose raw aluminum in the fire control pocket, but for most builders this internal area is acceptable to leave uncoated or touch up with cold blue or aluminum black. The exterior remains factory-finished.