Aero Precision M4E1 Enhanced 16" .300 Blackout 15" Quantum Handguard Complete Upper Receiver - Anodized Black - APAR640105M14

Aero Precision APAR640105M14: This Complete Upper includes Aero Precision 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
• 15" Enhanced Handguard
• 16" .300 Blackout CMV Barrel
• Low Profile Gas Block and Pistol Length Gas Tube
• Product comes assembled

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

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

Barrel Features:

• Chamber: .300 Blackout
• Length: 16"
• Material: 4150 Chome Moly Vanadium
• Finish: QPQ Corrosion Resistant Finish
• Gas System Length: Pistol
• Gas Block Journal: .750"
• Twist Rate: 1:7 Inches
• Muzzle: 5/8x24 Threaded
• Weight: 29oz
• Other; M4 Feed Ramp Extension, HP and MPI Tested, Standard A2 Flash Hider