The Aero Precision M4E1 5.56 NATO Assem Uppr Receiver M4 14.5'' Barrel Mid-length Black is a rifle barrel for AR-15.
Aero Precision’s M4E1 5.56mm Mid-Length Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle - the two components most often replaced by customizers. "Mid-Length" refers to the gas tube, which is longer than the standard carbine tube to slow down gas velocity and actually improve reliability in cycling. This is actually a carbine upper, available with either a military 14.5" or civilian 16" barrel (see Gun Tech Note below).
The core of the M4E1 5.56mm Mid-Length Upper Receiver is Aero’s forged M4E1 receiver that combines the looks of a machined receiver with "mil-spec" parts compatibility (including BCG and charging handle). It’s mated to Aero’s latest Gen 2 Enhanced M-LOK Handguard to form a monolithic assembly with a full-length Picatinny top rail, and plenty of attachment points for M-LOK-accessories. QD sling swivel sockets at the 3/6/9 o’clock positions.
The extended handguard covers the low-profile gas block. Texturing milled into the flats gives you an enhanced grasping surface - plus, it adds to your gun’s unique appearance.
Features
- Forged 7075 T6 aluminum receiver, Mil 8625 Type 3 Class 2 hardcoat anodized
- Ejection port cover & forward assist installed
- 4150 chrome-moly-vanadium barrel, 1-7" rifling, black QPQ finish
- Chambered for 5.56x45 NATO; accepts .223 Remington, too
- MID-LENGTH gas system
Specifications
- Brand: Aero Precision
- Fits: AR-15
- Color: Black
- Finish: Anodized
- Length: 14.5 in
- Style: Assembled
- UPC: 815421022872
