So, sometimes Kompressa projectiles just get deflected by Mag's magnetize bubble. I think it has something to do with the slow speed of the projectiles but I'm just guessing here. I suspect that the same thing would happen on other weapons with a slow projectile flight speed. I'd prefer not to test a bunch of weapons, make videos and upload them but I probably will eventually. In this clip you can see that none of the projectiles from Kompressa reach the enemies while shooting from outside