Polarstar Fire Control Unit, Rev. 3, Universal Flashhiders and Outer Barrels so it results in increased

so it results in increased comfort and stability

the very first fully mechanical

LiPO Ready: Yes

Fully adjustable to fit all kids and adult sizes up to large adults

Compatible when used with the Valken SMG Magazine Adapter

Polarstar Fire Control Unit, Rev. 3, Universal Flashhiders and Outer Barrels so it results in increasedThe REV3 FCU follows the classic design of our very first FCU and it is considered to be the finest fire control units on the market. Since it is equipped with an LCD screen and joystick you are able to easily scroll through menus and precisely adjust settings for the utmost control over the system. This FCU is also universally compatible with all PolarStar HPA systems including both dual and single solenoid systems. This latest REV3 model features