CYMA x SP System CGS GBB Adjustable Power Valve Set (NPAS) 249 the lower power is preferable

the lower power is preferable for some indoor gamers looking to engage at extremely short ranges or are otherwise looking to avoid clothing damage as much as possible

Notably this charging handle is designed for several GBBR platforms as well as for Systema PTW M4s

Full metal external construction

it has 7 inches of rail along the top as well as 6 inches on the bottom and each side

CYMA x SP System CGS GBB Adjustable Power Valve Set (NPAS) 249 the lower power is preferableSKU: CYMA CGS OT 0041 Features Durable and lightweight polymer construction Designed for long lasting reliability and strength Adjustable flow valve for the needed FPS for your build Drop in replacement requires little to no modification Manufacturer: CYMA SP System