Rotary spring guide version 3

<p>This spring guide replace original plastic one in the gun. It brings maximum durability and it is suitable for the strongest springs.<br /> <br /> Unique rotary construction.In the gun, springs sit on the axial bearing. It facilitate spring axial rotation during compression and reduse resistance.<br /> <br /> The best is combination of the spring guide and piston head with the bearing. Spring can float between bearings.</p>
<p>Suitable for version 2 gearboxes. (AK, G36, AUG, MP5K)</p>