You can allways get a JA Ciener kit for your 7.62x39 AK...
Kit consists of a sub-caliber barrel with an AK-bolt-shaped end on it,a replacement bolt/carrier & guide rod, and a .22cal magazine... You insert that into the breach and turn it into the locking lugs...
Works by straight blowback (no extractor or locking lugs), and hicaps will be available when the 94 ban dies...