Gen 8 Nylon Replacement Gearbox accessory-hop-up This solid Metal M4 rifle

This solid Metal M4 rifle built by our experienced GBU technicians gives you everything you need in a single rifle

This particular receiver is custom painted and we are only releasing 1 of 1 in this colour and cut combination

1 x X300 Metal Tactical Torch

CO2 Powered Magazine (Compatible with Green Gas Magazines when available)

These are compatible with the Golden Eagle double stack variant pistols

Gen 8 Nylon Replacement Gearbox accessory-hop-up This solid Metal M4 rifleFully 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.