Stern Defense MOD5 Upper 015SD10INCHMOD5MLOK855 | 9mm 8.5 in

The Stern Defense MOD5 015SD10INCHMOD5MLOK855 is a complete 9mm AR-style upper assembly built around an 8.5‑inch Melonite-finished steel barrel and a 10‑inch MOD5 M-LOK handguard. The upper is delivered Glock-cut and includes a Stern SD BU9 bolt and an enhanced charging handle. Threading and accessory compatibility make this upper suitable for pistol-caliber carbine builds and range/practice applications.

Product Specifications

• The manufacturer is Stern Defense.
• The model/part number is 015SD10INCHMOD5MLOK855.
• The caliber is 9mm.
• The barrel length is 8.5 inches.
• The barrel material is steel.
• The barrel finish is Melonite.
• The barrel is threaded .5-36.
• The rate of twist is 1:10″.
• The handguard is a MOD5 M-LOK design measuring 10 inches.
• The upper is delivered Glock-cut and is ready for Glock-cut lowers or Stern adapters.
• The product includes a Stern SD BU9 Glock-cut bolt.
• The charging handle included is an SD CH1 enhanced charging handle.
• The package includes an SD HBC 9MM blast can.
• The receiver is described as 7075-T6 aluminum with an anodized finish.
• The UPC is 860141001560.

This MOD5 upper is configured for modular pistol-caliber carbine and range use where a compact, Glock-cut 9mm upper is desired. The combination of a Melonite-treated steel barrel, a long M-LOK handguard for accessories, and the included bolt and blast can provide a ready-to-build component for shooters assembling a Glock-cut 9mm upper on a compatible lower. The Stern Defense MOD5 upper balances compactness with accessory mounting options for practical range and competitive PCC use.