The DPMS 300 AAC Blackout Upper Receiver Assembly comes completely assembled and ready for installation on any compatible lower receiver. It is an excellent entry-level upper assembly that incorporates the versatility of the A3 Flat-Top configuration in selecting a preferred sighting arrangement with a solid, fully functional foundation of quality components.
It features a 16" Heavy Contour Barrel with a versatile 1 in 7" rifling twist rate capable of stabilizing a wide selection of different bullet weights. It utilizes an A3-style Extruded 7075-T6 Aluminum upper receiver with forward assist, ejection port door and integral shell deflector. The upper comes equipped with heat resistant GlacierGuard polymer handguards, single rail gas block, charging handle, complete bolt & carrier assembly, and an A2 flash hider. Aluminum parts are hard coat anodized to mil-spec, steel parts are manganese phosphate treated (parkerized) matte black.
- Upper Receiver: A3 Flat-Top
- Barrel Length: 16"
- Barrel Contour: Heavy
- Barrel Material: 4140 Chrome Moly Steel
- Muzzle Thread Pattern: 5/8"-24
- Chrome Lined: Yes
- Twist Rate: 1 in 7"
- Chamber: 300 AAC Blackout
- Muzzle Device: A2 Flash Hider
- Gas System Length: Carbine
- Gas Block Diameter: 0.750"
- Handguard: GlacierGuard
- Sights: None
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commercial
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.