Aero Precision M4e1 Assembled Upper Receiver 7.5" 5.56mm Pistol Length

The Aero Precision M4E1 5.56mm 7.5" Pistol Upper Receiver is a state-of-the-art platform ready to be mated with the lower of your choice to form an advanced AR-15 pistol. At its heart is Aero's unique-looking forged M4E1 receiver that combines "mil-spec" receiver compatibility with aftermarket features, including a unique attachment system for the included handguard. This M4E1 5.56mm 7.5" Pistol Upper Receiver comes with Aero Precision's Gen 2 Enhanced M-LOK Handguard that forms a rigid, ultra-secure monolithic assembly with a gap-free, full-length Picatinny top rail. Plenty of attachment points for M-LOK-compatible accessories, plus QD sling swivel so Mfg: Aero Precision