Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel with 15" Enhanced M-LOK Handguard, VG6 Gamma 556, BREACH CH and 5.56 Black Nitride BCG - Anodized Black - APSL100391

Aero Precision APSL100391: This complete upper bundle has everything you need to hit the ground running on your next build! Included Enhanced M-LOK Handguard, Black Nitride BCG, BREACH Ambidextrous Charging Handle and VG6 GAMMA 556 Muzzle Device give you all the upgrades you need out of the box!

Includes:

• M4E1 Threaded Assembled Upper Receiver - Anodized Black
• 15" Enhanced M-LOK Handguard
• 16" 5.56 CMV Barrel
• AR15 BREACH Ambidextrous Charging Handle (Large Lever)
• Black Nitride 5.56 Bolt Carrier Group
• VG6 GAMMA 556 Muzzle Device

M4E1 Threaded Upper Receiver Features:

• New enhanced forging that gives the upper receiver a "billet look"
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed

Gen 2 Enhanced Handguard Features:

• 1-piece free float design
• Built in anti-rotation tabs
• Scalloped rails
• Continuous top rail
• 1.78" inside diameter
• Compatible with low profile gas blocks
• Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
• M-LOK attachment points

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
• Mid-length gas system, .0785 gas port
• M4 Feed Ramp Extension
• HP and MPI tested