- suitable for VIPER VI-46 GBB - Includes: steel bolt carrier, aluminum nozzle set, disassemble heavier mass, steel nozzle guide - 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
Manufacturer: ZParts
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