T-N.T. STUDIO launched a new HOP bucking : H.L.R. bucking !!
Use T-HOP and TR-HOP bucking as the base to improve the various parts of the HOP-UP pressure area. The BBs has a better positioning function and more accurate, which is more helpful to improve the stability of the ballistic. Even under the setting of low initial velocity, using with proper BBs, it can still have a very good shooting range.