Aero Precision M4E1 Enhanced 16" .300 Blackout Complete Upper Receiver with 15" Enhanced M-LOK Handguard - Anodized Black - APAR640251M14

Aero Precision APAR640251M14: 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
• 15" Enhanced M-LOK 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

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

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