Yes. The S-12 magwell magazines have the BHO provision in them and operate the Vepr BHO device just fine.
I haven't fired my gun more than about 10 magazines, but I have not had any trouble with the auto BHO.
And I will agree with you....the Vepr-12 is a very nice detachable box fed gun. They did a nice job building it. Tromix will be making some goodies for it and of course the standard SBS work.
Last edited by Tony Rumore; 11-22-2012 at 22:47..