Matrix 556 Type Special Force M4 Retractable Stock with 5 Position Metal Tube (Black)

For M4/M16 Series, Fit Tokyo Marui Stock Tube. Hold 8.4-9.6v 1400mah Battery. Made by Fiber Nylon.

Features:
Rubberized Butt stock included.
Metal Stock Tube Included.
Hidden Battery Compartment.
Holds custom battery pack or stick type lipoly battery packs.