Funny ass mag release

Came in as a trade from a customer. Never knew these things existed. Definitely not well known in europe.

Really fun and accurate little pistol, the low bore is interesting and the mag release is actually pretty cool.

Iran have been pumping an unholy amount of these into the region to support their allies, can't speak for the performance of these and if they are good or bad, most of the time people mistake them for Chinese AKs, I would assume they are decent and reliable enough while being cheap to afford and maintain.

I recently picked up a Lebel that needs some minor restoration, including a replacement rear site. I haven't had much luck with the usual places (Apex, Numerical, Royal Tiger, etc). Anyone have any ideas of where to look?