CTM AAP-01 160% Non-linear performance spring (German piano wire)

Material: Music Spring Wire (SWP-A)

Weight : 0.7g

Origin: German

Annealed and Rustproofing

Package Contents : 

160% Non-linear performance spring *1pcs 

Features : 

1. Increased bolt cycle speed.

2. The guide rod will not strike the bolt.

3. Improved balance to improve the ‘feel’ which gives a much smoother cyclic action.

4. Reduce recoil.

5. Smooth, consistent BB feeding.