Miscellaneous HPA items such as Engines, Hoses, Bottles, Nipples, Regulators, Batteries, Triggerboard and FCU's.
A HPA setup means that your airsoft gun works on air, HPA stands for High Pressured Air which automatically means you have to carry a HPA Bottle with you. The big advantage of a HPA setup is that you can setup everything with great precision like your ROF and Joule values. A HPA setup is also very maintenance friendly compared to an AEG.
