BROWNELLS BRN-4 STRIPPED UPPER RECEIVER BILLET

Assemble your own BRN-4 Upper Receiver Assembly

Machined from billet aluminum the new BRN-4 Stripped Upper Receiver mates perfectly with the Brownells BRN-4 barrels, gas system components and bolt carrier group. Assemble a BRN-4 Upper Receiver Group from all new parts, no more relying on surplus, used components. Precision machining of the billet aluminum gives the appearance of a forged part, with finely mapped contours, leaving no unecessary flat surfaces or sharp edges.

Matte black hardcoat anodizing. Anodizing meets or exceeds mil-spec requirements for thickness. Laser engraved T-Marks and BRN-4 logo.

Fits standard AR-15 & M16 Lower Receivers. Accepts standard AR-15 & M16 ejection port covers and forward assists. Does not include Op Rod / Upper Receiver Bushing (sold seperately).

Requires BRN-4 Upper Receiver Bushing (078000700)

Compatible with early style, HK^® 416 (A1-A3) barrels and barrel nuts.

PLEASE NOTE: This is a Billet Receiver, machined from a solid block of aluminum. As a result, it will show machine passes on some of the more complex geometry. These are intended to retain the overall exterior dimensions of a forged part. These surfaces are prepped by bead blasting to reduce the profile of any machining prior to anodizing.