This Stern Defense 015SD10INCHMOD5MLOK855 arrives as a complete upper assembly for 9mm shooters. The package includes a 10-inch M-LOK rail system with all necessary hardware—barrel nut, bolts, and related components—along with an 8.50-inch 9mm barrel finished in Melonite. The receiver is machined from 7075-T6 aluminum with anodized coating for durability.
The upper comes fully assembled with integrated dust cover and forward assist. It features a Stern Defense SD BU9 bolt cut to Glock specifications, paired with the SD CH1 enhanced charging handle for improved operation. A Stern Defense SD HBC 9MM Blast Can is included to complete the setup.
Whether you’re building a custom 9mm platform or upgrading an existing system, this upper assembly delivers Stern Defense engineering in one cohesive package.
