This model is equipped with a sealing ring which provides perfect tightness.
Dimension: 21,05 mm Shipping weight: 2 g
Guarder is one of the most proven spare parts company in the airsoft community. Their famous, high-quality products, such as springs, hop up rubbers, barrels, motors, gears and cylinder sets are the choice of many airsofters. Guarder wide product line contains even conversion setups for your plastic airsoft pistol to change it into a metal one.