Downgrade FPS/Muzzle Energy for TM AKM / AKX GBBR rifles.
Set of 4 sizes.
This little floating valve is a replacement part for the original floating valve in the TM GBB AK.
It comes in 4 different sizes, each giving a preset amount of gas volume through the nozzle to accelerate the BB. The smaller the volume, the lower the FPS.
Each valve has a unique marking to indicate it's powerlevel; High, Medium, Low and Very Low.
