![Polymer Bearing-Mounted Piston Head Polymer Bearing-Mounted Piston Head](https://air.viruisis.lt/11828-large_default/polymer-bearing-mounted-piston-head.jpg)
Polymer Bearing-Mounted Piston Head
A polymer, bearing-mounted piston head by Guarder. The fact that it is mounted on a bearing prevents the spring from hitting itself and allows for retaining of a constant muzzle velocity for a longer period of usage.