Suppressing piston head with the bearing - 2nd gen

Typical on this piston head is extended nose on the front part.Thanks this unique construction is shooting quiter. Unique washer on the back side protect piston head against loosing during shooting.  Based on tests we recommend to use it on standard or lower rates of fire. Sometimes is also needed to flat second tooth on the piston (counted from the hole side)  Package include piston head, O-ring, aluminium washer, screw and axial bearing.  Material  Aluminium  Application  For all gearboxes except 6 and 7  Purpose  Silent shooting  Weight  12,8g (complet)