the conversion kit was tested with all variants of vz58 based rifles - CZUB, CSA, Hermex and Novohradsky production (I guess Hermex and Novohradsky are not distributed in Canada). All barrell lengths and both barrel front mounts (screw mount and extension mount) are supported as well. Actually we recommend to use 25 rds in magazine, but we also plan to develop a rounded .22 magazine (the capacite could be 75 - 100 rds)...
David C. HAJICEK
Highland Arms (made in Czechoslovakia)