its a suppressed weapon shooting a subsonic round, it should have very low recoil
- Reproducable without other mods?
Not saying that everything is ok with recoil, but SR-3 is pretty light (2.4kg with loaded 30rnd mag) and fires heavy bullets (16 g SP-5 vs 6...12 g 7.62x39 variants). So recoil should be noticible.
But on videos and comparing to M4 .300 blackout (same gun and bullet weight) - SR-3 should be something between MP5 and M4 w.silencer recoils.