A few years back I converted my Saiga Sporter 7.62x39 to an AK-47 pattern rifle by buying a conversion kit, pistol grip, and a TACTICAL QUAD-RAIL. I had a gunsmith assemble it all. Now I want to take off the quad rail and pistol grip only keeping the the Saiga able to accept standard AK mags. I want to do it myself. Question: I don’t recognize the kind of screw/bolt used to fasten the quad rail on—below are some pictures. Can anyone advise me what tool I will need to remove the Quad rail and pistol grip? Any suggestions on how to remove the pistol grip and Radlock? I still have the old Saiga parts. Thanks for any suggestions.