This complete upper receiver incudes an HBAR profile barrel that is laser marked “HBAR”.

Includes:

• M4E1 Enhanced Assembled Upper Receiver
• 15″ Enhanced M-LOK Handguard
• 16″ 5.56 HBAR barrel
• Low Profile Gas Block and Carbine Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab.

M4E1 Upper Features:

• Forged from 7075 T6 aluminum
• Precision machined to M4E1 specs
• M4 feedramps
• Matte black hard coat anodized Mil 8625 Type 3 Class 2
• Laser engraved T-marks
• Comes assembled, with port door and forward assist installed
• Accepts standard AR15/M16 components
• Handguard mounting platform is forged into the receiver
• Works with Aero Precision handguards but also fits most BAR-system handguards
• Barrel nut and wrench are included

Gen 2 Enhanced Handguard Features:

• • 1pc free float design
  • Built in anti-rotation tabs
  • Scalloped rails
  • Continuous top rail
  • 1.78″ inside diameter fits most muzzle devices and 1.5″ suppressors
  • Compatible with low profile gas blocks
  • Gen 2 Feature – Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
  • Gen 2 Feature – Additional milling along flats to aid with gripping and add visual appeal

• Gen 2 Feature – New profile for the continuous picatinny top rail

16″ 5.56 HBAR Barrel

• 5.56 Nato 16″ Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
• .750 gas block journal
• Mid-Length Gas System
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider
• Aero Precision M4E1 15″ Enhanced M-LOK Complete Upper, 16″ 5.56 HBAR CMV Mid-Length Barrel – Anodized Black