Aero Precision M4E1 Enhanced 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640231M5

Aero Precision APAR640231M5: This Complete Upper includes Aero Precision's Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. This complete upper does not include BCG or Charging Handle.

Includes:

• M4E1 Enhanced Assembled Upper Receiver
• 12" Enhanced Gen 2 M-LOK Handguard
• 14.5" 5.56 Mid-Length CMV Barrel
• Low Profile Gas Block and Mid 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
• 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

14.5" 5.56 Mid-Length Barrel Features:

• Chamber: 5.56
• Length: 14.5"
• 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 Port: .0785
• Gas System Length: Mid
• Weight: 26oz
• M4 Barrel Extension
• HP and MPI Tested