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

Price: $31.79 — In stock.

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.