T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (370mm) Manufacturer_VFC Slide kit comes with:

Slide kit comes with:

Suitable for Tokyo Marui M4A1 MWS Series Airsoft Gas Blow Back GBB Rifle

- Steel Gear (Version 2/3 compatible)

- Weight 25g

-Field Strip mechanism is the same as the real steel

T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (370mm) Manufacturer_VFC Slide kit comes with:T N. T System APS X HOP UP SYSTEM HOP UP Retrofit Kit for KWA KSC M4 GBBR (370mm) 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.