Ghk m4 fsp Steel bolt with npas nozzle Real steel buffer spring Swapped to a lightweight buffer Maple leaf hopup Maple leaf inner barrel Gessille super charging handle Kac qd muzzle break Magpul enhanced grip Magpul ctr stock (now it has a eps) Magpul stubby grip Trijicon mro replica Five mags Three leak free mags Two leaky mags