Begadi CNC aluminum pistonhead for GBB handguns (13mm version) with ventilation -gold color-
CNC machined aluminum piston head with ventilation.
Suitable for GBBs with a nozzle diameter from 13.10 to 13.50mm
Outer diameter: 13mm
Height: 4,5mm
Indentation: (rear): 4.7mm x 1.1mm
O-ring: 9x2mm (13mm outer diameter), expands by ventilation to 13.50mm
Thread: (screw) M3
The pistonhead fits e.g. the standard Army R17 models, but it may be necessary to replace the existing o-ring with a slightly larger o-ring to ensure a good seal
Suitable for GBBs with a nozzle diameter from 13.10 to 13.50mm
Outer diameter: 13mm
Height: 4,5mm
Indentation: (rear): 4.7mm x 1.1mm
O-ring: 9x2mm (13mm outer diameter), expands by ventilation to 13.50mm
Thread: (screw) M3
The pistonhead fits e.g. the standard Army R17 models, but it may be necessary to replace the existing o-ring with a slightly larger o-ring to ensure a good seal
![](/catalog/images/b-25721001-gbb-pistonhead-13-0mm-aa-r17-goldfarben-rev2-details1.jpg)
![](/catalog/images/b-25721001-gbb-pistonhead-13-0mm-aa-r17-goldfarben-rev2-details4.jpg)
![](/catalog/images/b-25721001-gbb-pistonhead-13-0mm-aa-r17-goldfarben-rev2-details5.jpg)
![](/catalog/images/b-army-armament-r17-ripper-gladiator-gbb-general-internals-details21.jpg)
![](/catalog/images/b-army-armament-r17-ripper-gladiator-gbb-general-internals-details22.jpg)