RA-TECH CNC Bolt Carrier w/NPAS Composite Nozzle GHK M4 SILVER

For GHK M4 series GBBR
CNC Aluminum bolt carrier in silver finish
Included is articulating NPAS adjustment tool
Adjustable velocity by turning the NPAS valve using the tool
Nozzle is composite with reinforced steel nozzle head, stronger than original and prevents bb mis-feeds
Composite body and improved design provides cool-down resistance, more efficient gas consumption and consistent shot velocity.
Patented RA-TECH magnetic locking system