Aero Precision M4E1 Threaded Complete Upper, 12.5" 5.56 Carbine Length Barrel w/ 10.3" ATLAS S-ONE M-LOK HG - Anodized Black

Aero Precision M4E1 Threaded Complete Upper, 12.5" 5.56 Carbine Length Barrel w/ 10.3" ATLAS S-ONE M-LOK HG - Anodized Black

This complete upper includes our ATLAS S-ONE Handguard! The S-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″ M-LOK ATLAS S-ONE Handguard
• 12.5″ 5.56 Government Profile CMV Barrel, Carbine Length
• Low Profile Gas Block and Carbine Length Gas Tube
• AR15 A2 Birdcage Flash Hider
• 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

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