Just don’t use it.
It (Russian ammo) is made for cheap mass produced stamped steel guns that are not over engineered as the AR is. And it is dirty. Too dirty for a direct gas impingement AR IMHO.
If you want to shoot cheap buy an AK (I did).
If you want a weapon with refinement and precision then get an AR (did that too).
-There. Best of both worlds.
PS. comments reflect prior to tragic rowboat incident...
Well, I appreciate your concern, but I’m going to continue testing, and barring a lack of problems, will probably continue to use it since it seems to work for me, albeit with caveats. I can live with those caveats.
I haven’t noticed any problems related to the “dirtiness” of the ammo as yet. I think that the DI problems of the AR are somewhat overblown, as I’ve never had my AR stop due to being dirty, even after firing 1000’s of rounds of all kinds of ammo. Even tearing it down after shooting, the insides look like there’s no way the gun could keep functioning, but it does. I do keep it well oiled, though. I think people are overly sensitive about cleaning DI guns, therefore they never test to see what their guns are really capable of, which EVERY AR owner should do, IMHO. I have a friend who’s put over 2000 rounds through his AR with nothing but occasional lubrication.
I tend to think that the best of both worlds would be an AR that can run on any kind of ammo, with considerations. I’ll keep testing, though, and let the results speak for themselves.