T-N.T SYSTEMA Inner Barrel with Hop Up 265mm / 10.5" Retrofit kitfor PTW / DTW / CTW Key Tools WE M45A1 Marines CQBP Metal

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T-N.T SYSTEMA Inner Barrel with Hop Up 265mm / 10.5" Retrofit kitfor PTW / DTW / CTW Key Tools WE M45A1 Marines CQBP MetalT N. T SYSTEMA 265mm 10. 5" Retrofit kit for PTW DTW CTW TAIWAN T N. T. STUDIO grand launch SYSTEMA system CNC retrofit kit!! 100% developed and produced by TAIWAN T N. T. STUDIO 100% MADE IN TAIWAN (correspond: PTW. DTW. CTW) This kit continues T N. T. consistent development purposes: Simplify installation and just enjoy the fun of shooting!! ;) HOP UP chamber structure as one piece, better air tightness, BBs feeding more smoothly!! No more jam!! No