Bushmaster XM15-E2S Stripped Lower Receiver - Brown

The Bushmaster XM15-E2S in Brown — same forged 7075 aluminum quality and 1/4x28 tension screw in a distinctive color. The Bushmaster XM15-E2S Brown Stripped Lower provides the same multi-caliber flexibility and Type III hard coat anodize durability as the standard black variant, in a brown color finish for builders who want a distinctive aesthetic.

The Bushmaster XM15-E2S Brown Stripped Lower Receiver is a forged 7075 aluminum AR-15 lower receiver with a multi-caliber marking, Type III hard coat anodize in brown, Safe/Semi/Burst safety selector markings, and a 1/4x28 tension screw for upper-to-lower fit control.

Three features define the XM15-E2S Brown as a versatile build foundation. The multi-caliber marking keeps the lower unrestricted to any single chambering, providing the flexibility to build or configure across any AR-15-compatible cartridge. The 1/4x28 tension screw allows the builder to eliminate upper-to-lower wobble precisely, maintaining a tighter fit than standard lower receivers without aftermarket hardware. Brown finish provides a distinctive color option for builders who want an earth-tone aesthetic that pairs naturally with FDE, coyote, and other warm-tone furniture and components.

Compatible with mil-spec AR-15 upper receivers, lower parts kits, buffer systems, and furniture. Multi-caliber. Stripped. FFL transfer required.

Forged 7075 aluminum. Type III hard coat anodize, brown. Multi-caliber marked. 1/4x28 tension screw. XM15-E2S rollmark. Made in USA.

Suited for custom AR-15 builds where a brown color finish and the Bushmaster XM15-E2S quality are the starting criteria.

By Bushmaster. Made in USA. FFL transfer required — serialized receiver. Standard Bushmaster warranty applies.