X-Force M90 Spring

The X-Force M90 spring is a high quality spring for those looking for the extra edge in their blaster.

M90, This will give up to 290 FPS.

– Made with high quality steel

– Heat Treated

– Measured every 10 springs

– Linear Spring For Increased Consistency

– Designed specifically for X-Force

M4A1 Gen 8
M4A1 J 9
SCAR V2
SAW M249
Kriss Vector V2
HK416
KUBLAI M4
P90
M4SS

Approximate FPS Of M Series Springs
M85 Spring: 280 FPS
M90 Spring: 295 FPS
M100 Spring: 330 FPS
M110 Spring: 360 FPS
M120 Spring: 390 FPS
M130 Spring: 430 FPS
M140 Spring: 460 FPS
M150 Spring: 490 FPS
M160 Spring: 520 FPS