A very innovative Hop-Up rubber buffer knub.
Designed for low stress and high performance.
-Featuring the bridge type Hop-Up buffer knub.
-Enhance BB flight in a long and straight line, with wider contact point to stabilize the BB.
-Super hop up effect.
2 pcs included (hard and soft)
Can use in any brands of hop up rubber packing
Prometheus Hop Up Tensioner w/ Soft & Hard, flat type
$17.79