Aero Precision M4E1-T Complete Upper, 16" 5.56 HBAR Barrel, 15" M-LOK ATLAS S-ONE HG - Anodized

Aero Precision M4E1-T Complete Upper, 16" 5.56 HBAR Barrel, 15" M-LOK ATLAS S-ONE HG - Anodized

This complete upper receiver includes an HBAR profile barrel that is laser marked "HBAR".

Includes

• M4E1 Threaded Assembled Upper Receiver
• 15" ATLAS S-ONE M-LOK Handguard
• 16" 5.56 HBAR barrel
• Low Profile Gas Block and Mid-Length Gas Tube
• Product comes assembled
• This complete upper does not include the BCG or the Charging Handle. 

M4E1 Threaded Upper 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

ATLAS S-ONE Handguard Features

• Front and rear Picatinny rail
• Eliminated the center of the top rail for weight reduction
• Indexing grooves in the 12 o'clock position for positive grip control
• Quick disconnect sling socket at the 3, 6, and 9 o'clock positions
• 1.3" Inside diameter
• 1.5" Outside diameter
• Compatible with mil-spec AR15 upper receivers and barrels
• MLOK attachment points

16" 5.56 HBAR Barrel

• 5.56 NATO 16" Barrel, 1:7 twist, 4150 CrMoV, QPQ, gas port drilled
• .750 gas block journal
• Mid-Length Gas System
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider