The Aero Precision M4E1 5.56MM Assembled Upper Receiver W/ GEN-2 Handguard & Fsb - M4E1 5.56 Assm Uppr Receiver is an upper receiver for AR-15.
Aero Precision’s M4E1 5.56mm 10.5" Carbine Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle - the two most popular components for customization. At its heart is Aero’s forged M4E1 receiver that combines the look of a custom billet receiver with "mil-spec" parts compatibility (including BCG and charging handle) and a proprietary attachment system for the included handguard.
Aero has fitted the M4E1 5.56mm 10.5" Carbine Upper Receiver with a barrel of high-grade 4150 chrome-moly-vanadium carbon steel chambered for 5.56mm NATO ammunition, so it will safely handle civilian .223 Remington ammo too. The versatile 10.5" length is short enough for an AR-15 pistol build OR for a compact, fast-handling SBR (short barreled rifle) - with the proper NFA paperwork, of course. The longer carbine-length gas tube helps promote reliable cycling in either configuration.
Features
- Forged 7075 T6 aluminum receiver, Mil 8625 Type 3 Class 2 hardcoat anodized
- Black QPQ finish on barrel; other steel parts Parkerized
- 1-7" rifling
- CARBINE-LENGTH gas system
- A2 flash suppressor installed - NOT pinned or welded
- Handguard: 1.78" inside diameter clears most muzzle devices and 1.5" suppressors
Specifications
- Brand: Aero Precision
- Fits: AR-15
- Color: Black
- Finish: Anodized
- Length: 10.5 in
- Style: Assembled
- UPC: 815421022445
