![NBU set with metal full teeth piston for AK [BAAL]](/images/stories/virtuemart/product/baal-nbu-set-w-piston-full-1.jpg)
![NBU set with metal full teeth piston for AK [BAAL]](/images/stories/virtuemart/product/baal-nbu-set-w-piston-full-4.jpg)
![NBU set with metal full teeth piston for AK [BAAL]](/images/stories/virtuemart/product/baal-nbu-set-w-piston-full-3.jpg)
![NBU set with metal full teeth piston for AK [BAAL]](/images/stories/virtuemart/product/baal-nbu-set-w-piston-full-2.jpg)
Full NBU air system for power increase of the AK AEG. Recommended barrel 400-550 mm. Set include:
- chromium-plated cylinder
- polycarbonate back pressure silent piston head with the bearing
- stainless cylinder head with double O-rings
- acetal nozzle with O-ring
- Light polycarbonate piston with the full metal teeth.
What is NBU? : NBU parts have increased inner diameter to hold more air capacity. It is ussually cylinder, piston head, cylinder head and nozzle. Typically sold as a complete set. It is recommended use M120 springs or higher to reach proper effect.
BAAL
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