if you dont want to buy the tool its easy to fashion one by just finding a little pipe that fits inside, and squash it. as per the horizontal adjustment, thats where the old phone book comes into play again. tape up the gun, get a very broad end punch and a hammer, set the site sideways down in the crease of the open phone book and wale away. works great
i love SKS's
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die standing and go down swingin