Stalker Ultimate Spring Set (8-Springs)

This set includes four different recoil springs and four different nozzle return springs to tune your AAP-01 into a monster!Green gas, HPA, Drum Mags, Short Mags, Long Mags, Shortstroke kit Etc. There are countless AAP-01 setups possible, and we noticed every setup acts differently. Your temperature conditions also play a big role in how your AAP-01 works, so we decided to release an ultimate set of eight springs so you can tune your AAP-01 based on the parts and gas you use and on the temperature conditions where you live. This AAP-01 Ultimate Spring Set Contains: 1x 110% Recoil Spring 1x 140% Recoil Spring 1x 180% Recoil Spring 1x 200% Recoil Spring   1x 140% Nozzle Return Spring  1x 230% Nozzle Return Spring 1x 315% Nozzle Return Spring 1x 375% Nozzle Return Spring