BUSHING TO OFT DRG. NO. LP- 0062 TO COLD SWAGE, 7. 62MM/ 0. 315" BARREL WITH CHAMBER ON COLD SWAGING, MACH, Q3, BUSHING TO OFT DRG. NO. LP- 0073 TO COLD, SWAGE 5. 56MM BARREL WITH CHAMBER ON COLD, SWAGING MACHINE MODEL, BUSHING TO OFT DRG., NO. LP- 0068 TO COLD SWAGE 5. 56MM/ 7. 62MM/ 0. 315", BARREL WITH CHAMBER ON COLD SWAGING