Stern Defense 45 ACP 6" Upper Receiver with Black Melonite Barrel and Aluminum Anodized Receiver - 015SD8INCHMOD5MLOK6INC

This Stern Defense upper receiver assembly is chambered in 45 ACP and features a 6" Black Melonite Chrome Moly Steel barrel paired with a Black Anodized aluminum receiver. The upper is compatible with M-LOK handguard systems and measures 18.7" in overall length, providing a compact platform suitable for pistol-caliber AR builds.