Includes:

• M4E1 Enhanced Assembled Upper Receiver
• Enhanced Handguard of choice
• 16" 5.56 Mid-Length CMV Barrel
• Low Profile Gas Block and Mid Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. 

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

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 Mid-Length Barrel Features:

• 5.56 Nato 16" Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
• .750 gas block journal
• Midlength gas system, .0785 gas port
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider