Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. On this specific model, the forward assist provisions have been removed. Match this upper with one of Aero's AR15 lower receivers for a solid and dependable fit. Note: The no-forward assist upper receivers use a custom forging designed to work specifically with mil-spec port doors. It may not work with aftermarket port doors.
Bexar Arms offers receiver face squaring for an additional $10 charge. More information on receiver squaring can be found below.
- Milled from 7075-T6 forged aluminum
- M4 feed ramps
- Mil-Spec Hard Anodized
- Laser engraved T-marks
- No Forward Assist Provisions
- Does not include dust cover hardware
- 100% Made in USA
Squaring the Receiver Face
At Bexar Arms, we offer you the option to have the face of your receiver squared. Squaring the face of the receiver is an essential step in accurizing your AR pattern rifle, and ensures your barrel seats firmly and completely with the receiver face and is perfectly inline with the BCG raceway in the upper. This allows for a more consistent bolt engagement which evenly distributes force among all of your bolt lugs instead of only a few. This consistent lockup and complete barrel seating can help increase your AR's maximum accuracy potential as well as extend the life of your bolt. While squaring your receiver face is 100% unnecessary for your rifle to function, if you're looking to squeeze the absolute most performance out of your AR pattern rifle, we highly recommend it!