Aero Precision 11.5" 5.56 M4E1 R-ONE Threaded Complete Upper - FDE - APAR700713M29

This complete upper includes our new ATLAS R-ONE Handguard! The R-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. 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.

Includes:

• M4E1 Threaded Assembled Upper Receiver
• 10.3″ ATLAS R-ONE M-LOK Handguard
• 11.5″ 5.56 CMV Barrel, Carbine Length
• Low Profile Gas Block and Carbine Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab
• The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

Features:

• New enhanced forging that gives the upper receiver a “billet look”
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed