Aero Precision AR15 20" 5.56 Complete Upper w/ Pinned FSB & A2 Handguard Carry Handle AR-15

This AR15 Complete Upper is the same upper receiver used in our AERO M16A4 Special Edition Complete Rifle and features a 20" 5.56 Barrel w/ Pinned FSB, A2 Handguard and INCLUDES A2 Detachable Carry Handle.

Includes:

• Upper: Standard M4 Upper Receiver
• Barrel: 20" 5.56 NATO, Rifle Length, 1:7 Twist, 4150 Chrome Moly Vanadium, QPQ corrosion resistant finish
• Sights: A2 Detachable Carry Handle and A2 Front Sight Block w/ Bayonet Lug
• Handguard: A2 Style Handguard, Rifle Length
• Gas System: Rifle Length Gas System
• Muzzle Device: Standard A2 Flash Hider
• This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab
• The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

AR15 Upper Receiver with Forward Assist Features:

• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Forward assist
• Port door installed

20" 5.56 NATO Barrel Features:

• Chamber: 5.56
• Length: 20"
• Twist: 1 in 7
• Threading: 1/2"x28
• Material: 4150 Chrome Moly Vanadium
• Finish: QPQ corrosion resistant finish both inside and out
• Gas Block: .750
• Gas System Length: Rifle
• M4 Barrel Extension
• HP and MPI Tested