The Aero Precision M4E1 Complete Upper comes with an 8" .300 blackout barrel, low profile gas block, and a pistol length gas tube. This Upper comes assembled with a port door and forward assist installed. The muzzle break that comes with this complete upper receiver is not pinned or welded to the barrel. Get the best Upper Receiver for the lowest price at GrabAGun today!
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This Aero Precision Complete Upper includes the Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. The barrel has a length of 8", a threaded muzzle of 5/8x24 Threaded, and 4150 Crome Moly Vanadium material. This pistol length barrel also features an M4 Barrel Extension and is chambered in .300 Blackout. It accepts standard AR15/M16 components and comes assembled with a port door and forward assist installed. The handguard mounting platform is forged into the receiver.
Aero Precision M4E1 Complete Upper Specifications
Barrel Length: 8"
Twist: 1 in 7
Muzzle: 5/8x24 Threaded
Material: 4150 Crome Moly Vanadium
Finish: QPQ corrosion resistant finish both inside and out
Gas Block: .750
Gas Port: .109
Gas System Length: Pistol
Weight: 18oz
M4 Barrel Extension: Yes
Caliber: .300 Blackout
Material: 7075 T6 Aluminum
More Information
Barrel Length
8
Caliber
.300 AAC Blackout
Condition
New in Box
Finish Per Color
Black
Manufacturer
Aero Precision
Manufacturer Part Number
APAR640101M1
Model
M4E1 Complete Upper
Type
Uppers
UPC
840014603947
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
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