TNT APS-X Hop Up System Inner Barrel Retrofit Kit for GHK AK ( 410mm ) Stop Related ** the manual modification is

**  the manual modification is necessary

TNT STUDIO specially designed for KSC MP9 GBB GD

align-self:stretch}FCC G4 1/2 x 28 Thread Adapter ( Aluminum )

NOTE: Jellyfish will not fit on Dual-illuminate type models (RM03

charging rod

TNT APS-X Hop Up System Inner Barrel Retrofit Kit for GHK AK ( 410mm ) Stop Related ** the manual modification isThis new amazing Retrofit Kit was especially developed to replace and upgrade the entire GHK AK HOP UP structure. With the ongoing demand for quality upgrade parts for GHK AK GBB, TNT STUDIO has developed this Retrofit Kit which includes all necessary parts including a HOP UP bucking and HOP UP chamber.