Radical Firearms RF-15 Mil-Spec Forged M4 AR-15 Stripped Lower

The Radical Firearms RF-15 Mil-Spec Forged Stripped Lower Receiver is the serialized foundation for your next custom AR-15 build. Forged from 7075 T6 aluminum to mil-spec standards, this stripped lower delivers the strength, durability, and consistent quality that serious AR-15 builds demand.

Finished in non-reflective black Type III Class 2 hardcoat anodizing for outstanding corrosion and wear resistance, the RF-15 stripped lower is multi-caliber compatible and accepts any standard mil-spec AR-15 upper assembly chambered in .223 Remington or 5.56 NATO. It is built on the classic M4 lower profile and is stamped with the Radical Firearms maker mark.

Sold as a stripped lower only, this receiver ships without a fire control group, trigger, pistol grip, or buttstock, giving you complete freedom to spec your own components. Manufactured in the USA by Radical Firearms, the RF-15 is the perfect serialized starting point for any mil-spec AR-15 rifle or pistol build.

DISCLAIMER: Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit our shipping restrictions page to review all applicable restrictions for your state. Subject to change.