COWCOW Tech B01 Dynamic Blowback Housing for Tokyo Marui Hi-CAPA Series GBB Pistol (Black) AMG Umarex H&K UMP (Competition Version

Umarex H&K UMP (Competition Version

G&P M203 Launchers & CAW M79 Magazine Type Shell / Cartridge Bullet Type 6mm BB Manufacturer King Arms Package Includes King Arms Airsoft Cartridge x 1

Weight (gram): 600

Gas Blow back Cycling is ultra smooth

x1 Additional Rails

COWCOW Tech B01 Dynamic Blowback Housing for Tokyo Marui Hi-CAPA Series GBB Pistol (Black) AMG Umarex H&K UMP (Competition VersionIts CNC machined with 7075 aluminum drives a lightweight and durable blowback housing. Its 18g weight will smooth the cycling and faster blowback. Also, the special design on piston head can let the O ring always in prefect condition. It minimises the air leakage during the blowback action and the different sizes of anti oil O Ring provided can fit common used nozzles in the market. It can effectively cease that slight wobbling during the nozzle