Gen 8 Nylon Replacement Gearbox

Fully assembled and wired. Drop right in!

Great nylon shell and a good start for an upgrade or just a spare box to drop in.
Standard gears and internals safe to handle up to 1.2mm spring and 270 fps as it is now.

Full Nylon Gearbox for M4A1 Gen 8 / Scar V2 / MP5 V2 / UMP45 JinMing Brand.