TNT APS-X Hop Up System Inner Barrel Retrofit Kit for KSC-MP9 Adapter ( GD ) ( 14mm CCW )

TNT STUDIO specially designed for KSC MP9 GBB GD
Full CNC five-axis precision machining, and can be used with TNT full range of general specifications precision Air-cushion inner barrel !!
TNT MP9 Retrofit Kit - change not only material but also change to conventional, completely flip the performance of the KSC MP9 !!
Let your KSC MP9 at the same time both the rifle range, and really become a battlefield beast !!

TNT APS-X Hop Up System Inner Barrel Retrofit Kit for KSC-MP9 Adapter