BCM M4 Upper Receiver Assembly | 7075‑T6 Aluminum

The Bravo Company (BCM) M4 Upper Receiver Assembly is a mil‑spec, semi‑complete upper CNC‑machined from 7075‑T6 aluminum forgings and finished with a hard‑coat black anodize. It ships assembled with an ejection port cover and forward assist and is intended as a durable foundation for AR‑15 platform builds. This upper is useful for range training and competition builds, as well as gunsmithing or upgrade projects that require a mil‑spec receiver.

Product Specifications

• The receiver is precision CNC machined from 7075‑T6 aluminum.
• The finish is a hard coat anodize per Mil‑A‑8625F, Type III, Class 2 in black.
• The assembly ships with an ejection port cover and forward assist and is semi‑complete.
• A Mil‑Std 1913 rail is provided on the receiver for mounting optics and accessories.
• The receiver carries laser T‑markings to assist with optic remounting.
• The component is machined for use with barrels that use an M4 barrel extension.
• Includes a Mil‑Spec forward assist with a heat‑treated tool‑steel pawl and a press‑fit, pinned cap.
• Interior surfaces are treated with dry film lube per mil‑specs.
• The assembly is manufactured in the U.S.A..
• Designed to fit the AR‑15 platform and listed as an AR‑15 accessory.
• The product is sold without the bolt carrier group and requires a charging handle, barrel, handguard, gas block, gas tube, and muzzle device to complete, noted as BCG not included.
• The product type is listed as Semi‑Complete.
• Packaged dimensions are 2.70 x 3.80 x 9.25 inches.
• The UPC for this product is 855877004442.

This BCM M4 upper provides a solid, mil‑spec platform for a wide range of AR‑15 builds where durability and repeatable optic mounting are priorities. Its laser T‑marks, Mil‑Std rail, and hardened forward assist make it a reliable starting point for precision‑oriented range setups and competitive configurations.