T-N.T. Studio APS-X System Retrofit Kit for VFC AR / 416 / VR GBBR Series (370mm)

Want to increase the performance of your VFC M4 GBBR? Studio have released their new line of CNC retrofit kit which continues the T-N.T. consistent development purposes by simply installing this particular kit and playing immediately. The HOP-UP chamber structure as one-piece with better air-tightness in their Precision Air-cushion inner barrel so BBs are fed smoothly through the barrel.