Rapax One is 1J spring- made for – SRS/TAC41/SSG/VSR
Rapax One spring can be used in Silverback SRS/TAC41, Novritsch SSG10, SSG24, SSG96, upgraded VSR10…
Made to comply with Ireland, Italy and all other countries regulations with 1J sniper limit.
Springs are 13mm outer diameter, so they fit all above mentioned sniper replicas.
Our springs are made in Europe with best spring wire on the market. Electroplated to prevent rust, reduce friction and give you prolonged period of usage compared to other springs.
Confirmed results of reaching 1 Joule with a standard SRS 16″ and SSG10 (430mm barrel). Joules may vary depending on the barrel length and piston used.
Depending on setup effectiveness, spring can give more than 1J (1,2 for example). In that case, just pull the bolt and leave spring for 1 day, after that, try again and if needed just cut 2 coils. Instructions how to cut a spring are in video section here https://rapaxsprings.com/how-to-cut-airsoft-spring/
If you have less Joules then you should just add spacer on a spring guide and you are good to go.
We remind you that J is measuring just with heavy bb´s and not with 0.2. Also your hop up need to be adjusted for best bb flight.
The first thing you will notice is a lighter pull compared to standard springs, in short: less effort for more joule.
All springs are the same length, use the same material, have the same number of coils, etc.
Tempering of these springs is made in a way to guarantee a long lifetime and very small FPS/Joule loss over time.
Springs are made in tight tolerances regarding diameter, they prevent the “twang” sound in airsoft sniper replicas.
Before you install it, put any grease to the spring or spring guide.