One Horse AR-15 Lower Receiver - Stripped Lower

Build a dependable AR-15 from the ground up on a foundation you can trust — the One Horse AR-15 Stripped Lower Receiver gives you a forged 7075-T6 Mil-Spec lower, hardcoat anodized for long-term protection, precision machined for smooth fitment with any Mil-Spec upper, and made entirely in the United States.

The One Horse AR-15 Stripped Lower Receiver is a stripped lower designed for AR-15 builders who want a domestically manufactured, precision-machined forged aluminum foundation for tactical, competition, or everyday builds — ready to accept any Mil-Spec lower parts kit and upper receiver combination.

Forged from 7075-T6 aluminum and hardcoat anodized to MIL-SPEC standards, this lower provides a lightweight, durable, and corrosion-resistant foundation that matches the material specification of the AR-15 industry's most respected receivers. Precision machining ensures smooth, consistent fitment with any Mil-Spec upper — no fitting, no lapping, and no shimming required for a solid upper-to-lower fit straight from the box. The clean, hardcoat anodized finish provides a professional, durable surface that resists wear and corrosion across years of range use and carry. Every One Horse component is made in America with U.S.-sourced materials and strict quality control at every step — no imported surprises, no shortcuts, just American-made craftsmanship built to last.

Caliber: Multi (accepts any Mil-Spec lower parts kit and upper). Material: 7075-T6 aluminum. Finish: hardcoat anodized, black. Dimensions: Mil-Spec. Country of origin: U.S.A. Stripped — does not include lower parts kit, stock, or buffer tube.

Forged 7075-T6 aluminum with hardcoat anodizing provides the strength, weight, and corrosion resistance that define a quality AR-15 lower receiver. Precision machining ensures consistent fitment across Mil-Spec upper receivers and lower parts kits.

An excellent starting point for any AR-15 build — tactical, precision, competition, or home defense — where an American-made, precision-machined forged lower is the right foundation.

Backed by One Horse's commitment to American manufacturing and quality standards. Every One Horse component is made in the USA.