The G&P HPA Stock Rail fits on the sticks to the rear and underside of a HPA tank that is the exact same size and length of the G&P Jack HPA system. This will allow the user to slide a Buttstock over the HPA tank.
The G&P HPA Stock Rail fits on the sticks to the rear and underside of a HPA tank that is the exact same size and length of the G&P Jack HPA system. This will allow the user to slide a Buttstock over the HPA tank.