T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for GHK AK Series (320mm) Major Color_Grey Every parts of this Rifle

Every parts of this Rifle are designed to resist to the blowback recoil

- CNC Aluminum Material (Main Body)

Item Code: GM0212

Stainless steel outer barrel x1

Metal adjustable rear & front sight

T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for GHK AK Series (320mm) Major Color_Grey Every parts of this RifleT N. T. Studio APS X HOP UP SYSTEM HOP UP Retrofit Kit for GHK AK Series (320mm) Features : Simplify the original complex components. The inner barrel can be used T N. T. System all series of precision Air cushion inner barrel (O D 8. 5mm) H+ inner barrel(O D 9. 95mm), has been changed to a general specifications , to rid itself of special specifications. Improve the original innerbarrel rotation problems , improve the stability of shooting. T N. T.