Neat table, BTW.
I've been struggling with the decision to sell my last AKMs. I shipped my two SLR-107FR to the FFL handling the transfer for their buyer just this morning. That leaves me with (3) SLR-106FR (5.56) to sell. I keep wondering if I'd be better off keeping them and selling my ARs. Since I have FN Scars (my go to primary guns) I find the AR15 design redundant. The AKM, on the other hand, is so crude and simple it serves a slightly different purpose: end of the world beater.
I will not keep both the ARs and AKs. One has to go. We simply don't need 250,000,000 rifles.