the handguard retention pin is really crammed in there. wrap the handguard in a clothe and lock it in a vice, then use a steel punch and a hammer to knock it out, left to right.
once that's out there's nothing holding the rear ring on and it slides right off and then once you have the new handguard in place just reset the pin right to left. it's about the easiest mod you can do to an SKS.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
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Bean counters told me I couldn't fire a man for being in a wheelchair, did it anyway. Ramps are expensive.-Cave Johnson.