RMS 3+J spring for Silverback, Novritsch, Modify…

Rapax RMS 3+J spring can be used in Silverback SRS, TAC41, Novritsch SSG10, Modify Scout, upgraded VSR10, …

Rapax springs are 13mm outer diameter, so they fit all above mentioned sniper replicas and many more.

RMS stands for Rapax Modular spring. 

All RMS 3+J springs come with two PETG printed spacers included in package. 2x4mm so you can adjust FPS/J according to your field limits.

We remind you that J is measuring just with heavy bb´s and not with 0.2. Please adjust hop-up for best flight path before measuring.

The difference from light pull series is in its length (considerably shorter than light pull series), slightly harder pull, but increased silent shots. Electrically coated to prevent rust which gives a more smooth operation on the spring guide. Rapax Modular Springs are easy to install.

All our springs are electrically coated to prevent rust, which gives a more smooth operation on the spring guide.

All Rapax RMS 3+J springs are the same length, use the same material, have the same number of coils, ect.

Spring wire used for production of our springs is of the highest quality, ensuring a prolonged period of usage compared to other airsoft springs. So far tests have proven more than 10.000 shots with one spring without losing strength.

We use spring tempering process in a way to guarantee a long lifetime and very small FPS/Joule loss over time.

Rapax RMS 3+J springs prevent the “twang” sound in airsoft sniper replicas.

Note: Gspec versions of replicas, the one with 300mm barrel always need harder spring to achieve same J/FPS than longer barrels.

You can also visit “useful videos” page on this web site to get more knowledge about Rapax springs and other topics. For example, most usefull for many would be the importance to find out how weighted pistons work.