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aero precision M4E1 10.5" 5.56 nato Upper Receiver No FA 9.2" M-LOK ATLAS R-ONE Handguard no bcg or charging handle
MSRP: $464.99
9 points
In Stock: 3
sku: APAR712702M2
categories: PARTS

This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist. The included ATLAS R-ONE Handguard is 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.

  • M4E1 Threaded Upper Receiver, No Forward Assist
  • 9.2" ATLAS R-ONE Handguard
  • 10.5" 5.56 CMV Barrel
  • Low Profile Gas Block and Carbine Length Gas Tube
  • Port Door Assembly
  • A2 Flash Hider
  • This complete upper receiver does not include BCG or Charging Handle.
 Warning - Cancer and reproductive harm WARNING 
Cancer and Reproductive Harm