Complete Upper Features
Upper is Mil-Spec upper receiver with M4 feed ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized. The barrel is 4150 Chrome Moly Vanadium steel with 1:7 twist, 16″ government profile with 5.56 chamber, button rifled, MP & HPI tested, Mid-length gas system, Nickel Boron coated barrel extension, 11-degree target crown, and QPQ coating with A2 flash suppressor and crush washer. The barrel has been dimpled to ensure the gas block does not move. Gas Port Hole: 0.0785
This complete upper includes our G4 M-Lok handguard and includes one Picatinny rail section for accessory installation. The G4 handguard has built-in anti-rotation features, five QD swivel locations machined into the handguard, and are hard coat anodized. Marked: Defense Solutions Group Inc CAGE: 1L0J5 and has the DSG badge on the opposite side.
DSG Complete Duty Series Uppers are assembled and test fired by DSG armorers. Ready for field use*.
More on DSG Complete Upper Assembly Process and Verification process are available in the Blog section of our website.
*We Recommend DSG Standard and Enhanced Bolt Carrier Groups for guaranteed trouble-free and reliable performance. Charging handles come in many variations and all quality makes and models should work fine with our complete uppers.
Note: Does NOT include a bolt carrier group and charging handle.