Modify Rotary Spring Guide for Version 2

It is designed to minimize the load on the motor caused by the spring torsion. The base and the two wings are shaped in one-piece form to make a high durability. It fits in with any spring from stock to M170. Modify Spring Guide w/ Bearing for A&K/CA M249 (GB-06-02)(4713072161451) Modify Rotary Spring Guide w/ Bearing for Ver.2 (GB-06-11)(4713072161505) Modify Rotary Spring Guide w/ Bearing for Ver.3 (GB-06-12)(4713072161512) Modify Rotary Spring Guide w/ Bearing for Ver.7 (GB-06-13)(4713072161529)