COWCOW Technology B01 CNC 7075 Aluminum Dynamic Blowback Housing for Tokyo Marui Hi-Capa 5.1 GBB Originating-Armory_B&T MAG Steel Bolt Handle for

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COWCOW Technology B01 CNC 7075 Aluminum Dynamic Blowback Housing for Tokyo Marui Hi-Capa 5.1 GBB Originating-Armory_B&T MAG Steel Bolt Handle forB01 Blowback Housing is precision CNC machined from aluminum 7075 for ultimate durability and quality. Weighing in at just 18 grams, this blowback housing will improve the cycling action as well as gas tranmission. 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.