PK/PKM machine gun

On the photo: B-50 rail, B-51 rail, PT-2 stock, RK-3P pistol grip, RK-2 grip on B-25U mount, B-26mount, DTK-1P.

Recommended products for PK/PKM:

with a handguard: B-50 rail, B-51 rail (or B-13P), PT-2 stock, RK-3P pistol grip, RK-2 grip on B-25U mount, B-26 mount, DTK-1P;
without a handguard: RK-8 grip, B-51 rail (or B-13P), PT-2 stock, RK-3P pistol grip, DTK-1P.