Aero Precision AR-15 .300 Blackout M4E1 Threaded Complete Upper Receiver, 8″ Barrel, Atlas R-One M-LOK 7.3″ Handguard- FDE Cerakote

SKU: APAR700711M1
UPC: 840014608546

Threaded Complete Upper Receiver.

$479.99

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This complete upper includes our new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Complete Upper Includes:

    • M4E1 Threaded Assembled Upper Receiver
    • ATLAS R-ONE Handguard of choice
    • 8″ .300 Blackout CMV Barrell
    • Low Profile Gas Block and Pistol Length Gas Tube
    • Product comes assembled
    • This complete upper does not include BCG or Charging Handle. 
    • The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

              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 Feed ramps
              • .250 takedown pin holes
              • Laser engraved T-marks
              • Includes port door and forward assist installed

              Atlas R-One Handguard:

              • Full top picatinny rail for optional attachments
              • Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
              • Compatible with low profile gas blocks
              • 1.3” Inside diameter
              • 1.5” Outside diameter
              • Compatible with mil-spec AR15 upper receivers and barrels

              8″ .300 Blackout Barrel Features:

              • Length: 8″
              • Twist: 1 in 7
              • Muzzle: 5/8×24 Threaded
              • Material: 4150 Crome Moly Vanadium
              • Finish: QPQ corrosion resistant finish both inside and out
              • Gas Block: .750
              • Gas Port: .109
              • Gas System Length: Pistol
              • Weight: 18oz
              • M4 Barrel Extension
              • HP and MPI Tested
              Weight 3.0625 lbs
              Manufacturer

              Aero Precision

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