Solid upper for a precision build - Aero Precision M4E1 5.56 NATO No Forward Assist Enhanced Upper Receiver

Big fan of these Aero-Precision enhanced uppers. This particular upper was used to build a 6mm ARC for PRS gas gun class. Both the design and execution are terrific. This is a heavyweight upper with the enhancement of a oversized attachment for the handguard. This design isa similar to many of the best AR uppers like LaRue, Seekins, Daniel Defense, JP Rifle and others that have the handguard attach to a reinforced receiver rather than the flimsy barrel nut. While the barrel nut design works great for lightweight barrels and shouldered shooting, this upper is idea for heavier precision builds at it is far more ridged....and ridged = precision. Just remember, you must use an Aero Precision enhanced handguard with this upper. Highly recommended, as this makes 8 or ten builds with this upper.