Custom KWA M4 RIS, the old one that was front wired. KWA high torque motor KWA high torque gears G and g bucking All re wired to rear 416 style stock Reinforced piston and piston head New outer barrel 14inch Noveske rail 13inch(real steal one) VFC gas block Speed trigger M110 Spring Prometheus tight bore barrel Everything in the gearbox but the shell has been re done. All the wires are new Will trade or sell. Mainly looking for HPA or a gbbr or gbb period. Will add more on my end if need be. Just let me know what you have or will sell for right price