Proper Holster for Rare Handgun?

I have an EAA Zastava M88 9mm and I'm currently using a Galco PDL266B Holster because I can not find anything else. I would like to know what holster was designed to use with this gun, if possible. If you are a serious expert, please recommend the specific holster that's used with this service weapon, if possible. Please do not suggest ones that "might work" but ones that you personally know WILL work. Mad kudos to the best answer and thanks for your help in advance!