The Stern Defense 015SD10INCHMOD5MLOK855 9mm 8.50" Black Melonite Barrel Upper Receiver Assembly brings a refined, purpose-built design to the AR-15 pistol platform. This complete upper pairs an 8.5 inch Melonite-coated 9mm barrel with a 10 inch free float M-LOK handguard, Glock-cut bolt, and enhanced charging handle, all housed in a hard-coat anodized 7075-T6 aluminum receiver for durability and smooth operation.

Configured as a ready-to-run 9mm upper, this assembly is well suited for range use, training, and pistol-caliber carbine builds where controllable recoil and compact dimensions are preferred. The SD HBC 9mm blast can directs gases forward for a more comfortable shooting experience, while the precision 1:10 twist barrel supports common 9mm loads. Stern Defense’s attention to machining, fit, and component selection results in a reliable upper that integrates cleanly with compatible AR-15 lowers and adapters.

Key Features:

• Manufacturer: Stern Defense
• Model: 015SD10INCHMOD5MLOK855
• Caliber: 9mm
• Condition: New
• Barrel Length: 8.5"
• Threaded Barrel: .5-36
• Unique Features: 10" free float M-LOK handguard, SD HBC 9mm blast can, Glock-cut bolt, enhanced charging handle
• Length: 30" (approximate overall upper length)