SHS AEG Upgrade Spring

SHS spring power chart (with 0.20g bb's)

M90 - 290-300fps

M100 - 330-350fps

M110 - 350-380 fps

M120 - 380-410fps

M130 - 410-440fps

M140 - 440-470fps

M150 - 470-500fps

M170 - 550-600fps

M190 - 650-700fps