Yeah, I traded off my sks a while back but here is one I picked up this weekend, someone did a number on the magwell... they hacked it up bad and still I had to sand it down some for the tapco mag to fit! I have NEVER seen an sks that wouldnt accept tapco mags until this one...It had a metal 30 rounder that was just as a tight fit as well, even had to modify the tapco mag to fit...wondering if anyone has had similar problems. And yes I do know the bolt has to be open to insert it..thats not the problem. Also since it's such a PITA to remove have any of you ever used stripper clips with tapco mags? And I would put the factory one back in it but I dont have one and like the extra rounds the tapco offers.