Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm Black Complete Upper Receiver Black SDINBRLKK

Stern Defense SD 4in Mod4 M-Lok 4in Barrel 9mm Black Complete Upper Receiver Black SDINBRLKK. ) Stern Defense 4 inch 9mm barrel. SD MBC 9MM Blast Can. Stern Defense assembled upper receiver with dust cover and forward assist. Stern Defense SD BU9 Glock cut bolt. SD CH1 enhanced charging handle. Will come assembled. Information: Handguard. The free float M-LOK handguard from Stern Defense offers excellent ergonomics while remaining lightweight and strong. This handguard is M-LOK compatible to accept your favorite attachments. Features a secure clamp on mounting system that ensures that the handguard remains in place even under heavy abuse sustained full auto fire and shooting prone from a bi-pod. Machined from 6061 aircraft grade aluminum and hard-coat anodized for longevity and durability. These handguards also feature quick disconnect swivel holes. Also Included Barrel Nut and Bolts. Specifications for Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver: Manufacturer: Stern Defense Cartridge: 9mm Luger Barrel Length: 4 in Barrel Twist Rate: 1-10 Finish: Matte Color: Black Fabric/Material: Melonite Additional Features: Threaded .5-36 Condition: New Magazine Included: No Features of Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver Barrel length is measured in overall length from breech to muzzle. Caliber: 9mm. Length: 4 Inches. Threaded .5-36. 1:10 TWIST. 4150 Chrome-moly steel. Melonite coating. Package Contents: Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver Stern Defense SDINBRLKK: SD 4in Mod4 M-Lok 4in Barrel 9mm Black Complete Upper Receiver Black