The surface of the frame is the Gen 4 Rough Textured Frame-scientifically designed, real world tested. Internally, the Glock dual recoil spring assembly substantially increases the life of the system. Obtaining the greatest accuracy for target shooting was the main reason for the development of the Glock 34 which has an extended barrel, greater slide dimensions, and unmatched reliability in a 9x19mm pistol. This highly accurate pistol has found widespread use as a competitive pistol for USPSA, IDPA, IPSC, GSSF and other sport shooting organizations. The G5 has the MOS cut.