- Made in Taiwan
- Suitable for Viper M4 / SR15 / SR16 Series GBBR
- Package Includes :
- Steel Bolt Carrier (Full CNC Machining w/ Manganese Phosphate Surface Treatment)
- Aluminum Nozzle Set (Full CNC Machining w/ MIL-STD Grade Hard Anodizing Coating)
- Steel Nozzle Guide (Full CNC Machining w/ Manganese Phosphate Surface Treatment)
- Detachable Weight Block
- Recommended to Use with Gas Magazine
- For M3 Screw, Recommended Fastening Torque 1.96 N.M
- Please Use Torque Wrench and Threadlocker
- Piston Bore Diameter : 19mm
