– Special alloy design
– Pressure adjustable
– Increase accuracy and distance
– This quality hop up will friction / grub fit on most inner barrel specs that are less than or equal to 9.5mm
– Will fit inside most outer barrel with an internal diameter greater than 15.8mm
– Product Size: 4.5cm x 1.58cm x 1.58cm
– Product Weight: 155g

Please Note that item colour may be different. Function remains the same