CTM AAP-01 160% Non-Linear Recoil Spring

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.