Black Rain Ordnance Spec15 Stripped Lower Features The Black Rain Ordnance Spec15 is forged from 7075-T6 aluminum a material chosen for its strength-to-weight ratio and resistance to flex under heavy use. The Armored Black Cerakote finish adds a layer of corrosion resistance on top of the forged aluminum protecting the receiver from the elements while giving it a premium tactical appearance. Being multi-caliber marked this lower is built to support builders running different chamberings across various AR-15 projects rather than being locked to one caliber designation. Precision machining to tight tolerances ensures a reliable fit with mil-spec internal components. As a stripped lower the Spec15 is designed to accept standard mil-spec fire control groups buffer tubes and other internal parts without modification giving builders full freedom in parts selection. It is also compatible with aftermarket uppers making it a flexible foundation for anything from a dedicated competition gun to a rugged tactical rifle. This versatility makes the Spec15 a strong starting point whether the goal is a precision build or a hard-use rifle. Builders looking for a durable well-finished stripped lower to anchor their next AR-15 project will find the Spec15 a solid foundation. Black Rain Ordnance Spec15 Stripped Lower Specifications Manufacturer: Black Rain Ordnance Model: Spec15 Caliber: Multi-Cal Color: Black Material: Aluminum Lower Pattern: AR-15 Lower Type: Stripped Metal Finish: Cerakote Weight: 0.85 lb Available At: GrabAGun