Product Description
This DPMS AP4 A3 AR-15 Upper Receiver Assembly comes fully assembled and ready to install on any standard small pin mil-spec lower receiver. Perfect for those searching for a lightweight economical upper configuration with the styling of the military's M4 carbine this Forged 7075-T6 Aluminum A3 upper's Flat-Top Picatinny Rail also provides maximum versatility in terms of a shooter's preferred sighting arrangement including fixed or flip-up rear iron sights and/or virtually any rail-mountable optic.
This upper comes equipped with a 16" M4 Contour Barrel machined from 4140 Chrome Moly Steel a true 5.56x45mm NATO chamber for use with either commercial or higher pressure military surplus ammunition and a versatile 1 in 9" Rifling Twist that is capable of stabilizing light- to medium-weight bullets of up to about 69 grains. Additional features include a Carbine-Length gas system forged A2 Front Sight Assembly with bayonet lug 2-Piece Glacierguard Handguards complete bolt carrier group charging handle forward assist shell deflector ejection port door and A2 Flash Hider.
Technical Information
- Upper Receiver: A3 Flat-Top
- Barrel Length: 16"
- Barrel Contour: M4
- Barrel Material: 4140 Chrome Moly Steel
- Muzzle Thread Pattern: 1/2"-28
- Chrome Lined: No
- Barrel Finish: Parkerized
- Twist Rate: 1 in 9"
- Chamber: 5.56x45mm NATO
- M4 Feed Ramps: Yes
- Muzzle Device: A2 Flash Hider
- Gas System Length: Carbine
- Gas Block Diameter: 0.750"
- Handguard: 2-Piece Polymer Glaciergaurd
- Sights: A2 Fixed Front No Rear
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commercial
