Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver 5.56 Mid-Length – ATLAS S-ONE – 16″

Features:

  • M4E1 threaded upper receiver
  • Forged 7075-T6 aluminum
  • Assembled forward assist and dust cover
  • 15” ATLAS S-ONE M-LOK handguard
  • Hardcoat anodized
  • 16” 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

$433.49

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SKUAPAR700305M7 Category

Looking to build the perfect AR-15? Aero Precision has you covered with everything you need in one complete upper receiver group. The M4E1 complete upper receiver is forged from high quality 7075-T6 aluminum and features a billet machined look. It comes fully assembled with forward assist and dust cover. The ATLAS S-ONE free float handguard is 15” long and provides a 1.3” inner diameter that surrounds the low profile gas block and mid-length gas tube. This barreled upper receiver group does not include BCG or charging handle, so you can choose your favorites for your build. Get everything you need in one complete package and get building today!

The Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver 5.56 Mid-Length – ATL is the perfect choice for finishing an AR build. The 16” barrel is machined from Chrome Moly Vanadium steel with a salt bath Nitride finish and a 1:7 twist rate for stabilizing heavier rounds. It is threaded 1/2×28 with an A2 style flash hider. High pressure tested and magnetic particle inspected ensure this barrel is accurate and reliable.

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