M150

The main spring designed for power tune up of electric replicas (AEG) and has got uneven coils that significantly extends the lifespan of the assembly by minimizing the trashing of the main spring, it is so under the condition…

The most "colorful" spring. The color is not painted. It is hard-coated by special process. Calculated carefully by computer and test by 100000 times punching. Spring has been proofed that the length and force are still…