AIRTAC AT200 HPA Regulator

→ Adjustable 0-200PSI 
→ US-spec fitting pre-installed
→ Lifetime warranty

Probably best price / performance regulator on the market with lifetime warranty. This will be a perfect first regulator for any of the HPA pistol adapter or high speed HPA engines.

It has dual 1/8 NPT female output ports with 1x US-spec foster fitting and 1x plug installed.  

It comes with a tool for easy power adjustment and a large PSI dial. The design also allows for the lid to be easily locked with a zip-tie for events to prevent adjustment.