Pistol Type NP34 9×19 mm
Chinese NP34 9 mm pistols are made of aluminum sleeve seat structure and high strength aluminum al loy. But the limit life of aluminum sleeve seat is generally 6000-7000 rounds.The main problem is that the guide rail groove is easy to crack.The reason for the cracks in the guide rail grooveis that the sleeve unlocks and moves backward after launching. When the sleeve sits back in place, there is an upward impact force on the guide rail on the sleeve seat. whichis related to the speed of the sleeve sitting back inplace.