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

PRODUCT DESCRIPTION

• 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.