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 - AnodizedThis 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 installedATLAS 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 points16" 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