5KU M4 AEG RIS/M1913 Rail Stock Base Black

AEG M4 Receiver End Plate with RIS / M1913 Stock Adapter by 5KU in black .

Allows installation of stocks with RIS/M1913 rail mounts (MCX and MPX style).

Can also be used without a stock as a compact M4 pistol.

Easy installation on M4 AEG receivers (TM standard).

Made from CNC-machined aluminum.