Polymer Ball Bearing QD Spring Guide V2/V3

Made of durable polymer a ball bearing spring guide designed to work with gearboxes equipped with the quick QD spring change system.

Unique rotary construction. In the gun, springs sit on the axial bearing. It facilitate spring axial rotation during compression and reduse resistance.

The best is combination of the spring guide and piston head with the bearing. Spring can float between bearings.

Suitable for QD version gearboxes.