Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver 5.56 Mid-Length – ATLAS R-ONE – 14.5″

Features:

  • M4E1 threaded upper receiver
  • Forged 7075-T6 aluminum
  • Assembled forward assist and dust cover
  • 12” ATLAS R-ONE M-LOK handguard
  • Hardcoat anodized
  • 14.5” 5.56 NATO barrel
  • Machined from Chrome Moly Vanadium
  • Mid-length gas system
  • 1:7 twist rate
  • Threaded 1/2×28
  • A2 flash hider
  • Salt Bath Nitride finished
  • Does not include BCG or charging handle

$420.74

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SKUAPAR700704M5 Category

Note: This barreled upper receiver assembly has a barrel length under 16” and is therefore subject to all NFA rules and regulations. Know your local laws before purchasing.

Aero Precision’s M4E1 Threaded AR-15 Barreled Upper Receiver comes completely assembled with a 14.5″ 5.56 barrel and their ATLAS R-ONE M-LOK handguard. This barreled upper receiver group does not include a BCG or charging handle, allowing you to choose your favorites for your build. The upper receiver is, however, fully assembled with forward assist and dust cover.

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