AERO M4E1 ASSEMBLED UPPER KODIAK BRN Color:Kodiak Brown but which also provides impressive

but which also provides impressive reach at its max output setting

Barrel extension: M4‑style with extended hand‑polished feed ramps

Its modular Blocks and Panels let you customize your layout in seconds without cutting or tools

There’s also an exterior-mounted

AERO M4E1 ASSEMBLED UPPER KODIAK BRN Color:Kodiak Brown but which also provides impressiveThe 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 their M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075 T6 Aluminum, precision machined to work with all mil spec AR15 parts and includes the port door and forward assist pre installed. Features :