粗牙

• Special gun muzzle , rough nail hardened design , powerful explosive force , low recoil , most important super version series , firing pin under special treatment , various design , made as per the principle of car suspension , above 5 folds more durable than common nail gun
  枪咀特制，粗牙加硬设计，爆发力强，后坐力低，最主要超级版系列，撞针是经过特别处理，一头大小设计，汽车避震原理制造，比普通牙钉枪耐用5倍以上。