♦ FOR VIPER VI-46
♦ Include: steel bolt carrier (VIPER-VI-46-002), aluminum nozzle set (VIPER-M4-003), disassemble heavier mass, steel nozzle guide (VIPER-M4-004)
♦ Steel bolt carrier: full CNC machining, manganese phosphate surface treatment
♦ Aluminum nozzle set: full CNC machining, coated with hard anodizing in MIL-STD
♦ Steel nozzle guide: full CNC machining, manganese phosphate surface treatment
♦ Recommended to use gas magazine
♦ (M3 Screw) Recommended fastening torque 1.96 N.m
♦ Please use torque wrench and threadlocker
♦ Piston bore diameter: 19mm