Tornado springs are offerder in many power versions, ranging from M85 to M170.
The best quality steel wire, the same as used to produce piano strings, was applied in Tornado springs. Thanks to this thet are durable and accurately finished, the ends have been polished.Tornadoes are irregular pitch springs, which results in the fact that the system's lifespan is increased through considerable cut-back of the spring's mechanical wear.
Unlike many other manufacturers who either falsely or inexactly inform about springs' power, the signs on Tornado's packagings relate perfectly to the powers which may be achieved in replicas after proper mounting. For example:M100 = 100m/s
Tornado springs are a great choice for every airsofter who is striving to achieve certain initial muzzle velocities; they are a perfect tool for every AEG replica tunning.
Replaced my stock SA-B04 spring with this M120, came out way too powerful. 1.8 joulse with 0.28 gram bb's, that's 372fps or 113m/s!
With 0.2 gram bb's that would be around 135m/s or 440fps!
Rating is way off OR they're rating it with 0.25 gram bb's. With 0.25 gram bb's it's exactly 120m/s!
If it's rated with 0.25 gram bb's it should be mentioned somewhere! I know that SP springs are measured at 0.25 but there's no mention of this being the same...