Aluminium,CNC made, nozzle for the best durability. Inside two sealing rubber o-rings. We recommend to grease cylinder head before nozzle instalation.
Nozzle has standard inner diameter, not NBU !!! A&K M60 has little bit large diameter cylinder head so this nozzle wont fit on A&K M60!! We suggest to use different cylinder head.
We are in airsoft business since year 2007. We listen customer's needs and try to bring goods with reasonable prices. We gather informations from 15 years of experiences with airsoft. Our AirsoftPro brand spare and upgrade parts are well known in Europe airsoft market.
Currently our shop is the most popular aisoft shop in the Czech Republic with the excellent feedback. See www.heureka.cz. In 2016 we run new modern eshop and working on warehouse logistic improvements to faster orders packing.