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Aero Precision APAR700115M97: This complete upper receiver incudes an HBAR profile barrel that is laser marked "HBAR". This complete upper does not include BCG or Charging Handle.
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
AR15 A2 Birdcage Flash Hider
Product comes assembled
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
ATLAS S-ONE HANDGUARD FEATURES:
Front and rear picatinny rail
Eliminated center of top rail for weight reduction
Indexing grooves in 12:00 position for positive grip control
Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
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