Aero Precision M4E1 Threaded Barreled Upper Receiver .300 BLK Pistol Length – ATLAS S-ONE – 8″

Features:

  • M4E1 threaded upper receiver
  • Forged 7075-T6 aluminum
  • Assembled forward assist and dust cover
  • 7” ATLAS S-ONE M-LOK handguard
  • Hardcoat anodized
  • 8” .300 Blackout barrel
  • Machined from Chrome Moly Vanadium
  • Pistol length gas system
  • 1:7 twist rate
  • Threaded 5/8×24
  • A2 flash hider
  • Salt Bath Nitride finished
  • Does not include BCG or charging handle

$390.99

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SKUAPAR700301M1 Category

The Aero Precision M4E1 Threaded Barreled Upper Receiver is the perfect platform for building a high-quality AR-15 pistol. Forged from 7075-T6 aluminum, this upper receiver features a billet design at a much lower cost and looks great when paired with the M4E1 lower receiver. The ATLAS S-ONE free float handguard is made from the same material with the same hardcoat anodized finish and features a lightened profile with M-LOK slots for accessories. This .300 Blackout AR-15 barreled upper receiver assembly does not include a BCG or charging handle but does include the forward assist and dust cover. Build a high quality .300 BLK AR pistol today with the M4E1 upper receiver assembly.

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