TNT Complete Hop-Up Chamber with 6.03mm 370mm Barrel

Almost Brand new T-N.T. hop up retrofit t for VFC M4 Series GBBR is a premium upgrade over the stock ones found in the out of the box guns listed.
The kit ensures better accuracy due to better and finer tuning of the hop up.
• Standard HOP-UP bucking.
• T-N.T. - T-HOP bucking / VFC-M4 / 60° 
• T-N.T. - St Double I/D Air-cushion inner barrel @370mm 6.03
• T-N.T. - VFC-M4 HOP chamber assembly