VFC M249 Steel Piston vipertech Special chamfering of nozzle to

Special chamfering of nozzle to give the best seal to the inlet valve

Packaging marks catch height

Adjustment options: Wheel or Rear screw adjust Nub

-Injection molded nub

please note that the compression part of the spring should be connected to the nozzle pin while the tension part of the spring should be connected to the rear assembly that gets screwed into the back of the bolt

VFC M249 Steel Piston vipertech Special chamfering of nozzle to4140 steel. Black Nitrided. 8 ounces. this is only the part of the piston that is threaded 14mm on each end. I would encourage you to complete this piston by buying Bavtechs Brass piston to complete this.