King Arms 150% Recoil and Hammer Spring set for WA Infinity

For Western Arms Gas Blow Back Airsoft Pistol 
Replace Standard Hammer & Recoil Spring of the Airsoft Pistol 
Increase the hammer tension resulting higher gas output, i.e. more power FPS 
Upgrade recoil spring increase the blowback action of the gun 
FULL METAL CONSTRUCTION 
Best use in Conjunction with Metal Slide/Outer Barrel + High Flow Blow-off Valve