Black Diamond Armory Stripped Upper Receiver
Built to perfectly complement our BDA-M4 lowers, this stripped upper receiver delivers precision, strength, and a flawless fit. CNC-machined from 7075-T6 forged aluminum, it’s engineered to true mil-spec standards with tolerances set at the high end of spec for a snug, rock-solid mate with your lower.
Finished in a deep Type III Class 2 black anodizing, the upper has both the durability and aesthetics to match the look of your custom build. The interior features a dry film lubricant coating for smooth cycling, while the M4 feed ramps and precisely cut barrel seat ensure reliability and accuracy downrange. A standard roll-pin forward assist rounds out the build for that classic AR-15 feel.
Whether you’re starting fresh or completing a Black Diamond build, this upper receiver is the ideal match—designed to bring out the best in your rifle.
Features:
CNC machined from 7075-T6 forged aluminum
True mil-spec with tight tolerances for snug fitment
Designed to pair seamlessly with BDA-M4 lowers
Type III Class 2 black anodized finish
Dry film lube interior for smooth cycling
M4 feed ramps for reliable feeding
Precision barrel fit
Standard roll-pin forward assist