Ruger AR15 Stripped Lower Receiver

Ruger AR15 Stripped Lower Receiver

Providing a rock-solid, military-grade foundation for custom rifle builds, the Ruger AR-15 Stripped Lower Receiver combines precision American manufacturing with thoughtful, builder-focused features. Forged from high-strength 7075-T6 aircraft-grade aluminum and CNC-machined to exacting mil-spec tolerances, this stripped lower receiver ensures broad compatibility with standard AR-15 upper receivers, lower parts kits, and aftermarket accessories. Protected by a matte black Type III hardcoat anodized finish, it delivers long-lasting resistance against physical abrasion, harsh environments, and chemical corrosion.

Engineered for maximum versatility and seamless assembly, the Ruger stripped lower features a precision broached magazine well for effortless mag changes and a full-cut inlet fire control pocket that accepts a wide range of single-stage, two-stage, and match-grade triggers. To solve receiver wobble, Ruger incorporates an integrated upper/lower tension adjustment screw housed in the grip tang, allowing builders to dial out slop for a custom, rock-solid lockup. Stamped with a "Multi-Cal" designation, this receiver serves as the ultimate blank canvas for building anything from a standard 5.56 NATO carbine to a .300 Blackout or 6.5 Grendel setup.

Features

Forged 7075-T6 Aluminum Construction:
Forged from high-strength 7075-T6 aircraft aluminum for maximum structural integrity and long-term durability under heavy firing schedules.

Precision Mil-Spec Machining:
Machined to exact military specifications, ensuring flawless fitment with all standard AR-15 lower parts kits, magazines, and upper receivers.

Integrated Upper/Lower Tension Adjustment Screw:
Features an adjustable set screw housed inside the grip tang to eliminate slop and receiver play for a tight, custom-feeling lockup.

Precision Broached Magwell:
Utilizes a clean, broached magazine well cut with beveled geometry to ensure smooth, rapid magazine insertion and positive seating.

Full-Cut Inlet Fire Control Pocket:
Machined with a full-cut fire control pocket to accommodate a wide variety of standard mil-spec drop-in cassette and match triggers.

Type III Hardcoat Anodized Finish:
Coated in a non-reflective matte black hardcoat anodization that shields the aluminum against environmental wear, scratching, and chemical corrosion.

Multi-Caliber Versatility:
Stamped with a "Multi-Cal" designation, providing complete freedom to configure the receiver in 5.56 NATO, .300 AAC Blackout, 6.5 Grendel, or other AR-15 compatible calibers.

Specifications