I picked up a Polytech AK the other day. It has the milled receiver and it's 386 stamped. I have found the cheap Tapco infrasure (I don't need expensive, it's an AK mind you) that claim to fit milled receivers. However, it says that it won't fit "a slant-cut receiver at the rear" and I am pretty sure mine is this. I don't mind springing some cash towards one, but it has to be telescoping AND be able to fold to the side. Can't find one that says ti will fit. Thank you!