They are not volunteer insignia for waffen SS, but volunteer shields for Wehrmacht. There are still many around of these, so the replicas are not so often seen compared to more exotic variants.
I believe they are genuine, lets hope others will share their opinions.
Here is how these "Georgian" shields sometimes looked like when on a uniform jacket.
Collect ROA, Cossack, Schuma and other WW2 Volunteer militaria.
"Be Humble and kind, for you may find that it was Odin you entertained"
I agree with Trondk, good.