AERO M4E1 ASSEMBLED UPPER FDE Finger Stop Made from 7075 T6 Aluminum

Made from 7075 T6 Aluminum

Incorporating a built in recoil lug and two socket head cap screws and clamp foot

and 4140 steel extractor

Made in the USA

60 degree or 90 degree throw

AERO M4E1 ASSEMBLED UPPER FDE Finger Stop Made from 7075 T6 AluminumThe M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075 T6 Aluminum and precision machined to work with all mil spec AR15 parts. Features : Works with standard AR15 components Perfect for your custom