Aero Precision M4E1 Enhanced 7.5" 5.56 Pistol Length Quantum Handguard Complete Upper Receiver - Anodized Black - APAR640101M0

Aero Precision APAR640101M0: This Complete Upper includes Aero Precision's Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. This complete upper does not include BCG or Charging Handle.

Includes:

• M4E1 Enhanced Assembled Upper Receiver
• 7" Quantum Handguard
• 7.5" 5.56 Pistol Length CMV Barrel
• Low Profile Gas Block and Pistol Length Gas Tube
• Product comes assembled
• The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

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 (Anodized only)
• 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

Quantum Handguard Features:

• 1pc free float design
• Removable 4-slot picatinny rail section for front sight
• Built in anti-rotation tabs
• 7 mounting surfaces for KeyMod accessories
• 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
• Compatible with low profile gas blocks

7.5" 5.56 Pistol Length Barrel Features:

• Chamber: 5.56
• Length: 7.5"
• Twist: 1 in 7
• Threading: 1/2"x28
• Material: Chrome Moly Vanadium
• Finish: QPQ corrosion resistant finish both inside and out
• Gas Block: .750
• Gas System Length: Pistol
• Weight: 17.25oz
• M4 Barrel Extension
• HP and MPI Tested