forget cops! aimsurplus.com 4 mags with pouch 40 bucks, 1080 rounds of 5.45 (1 can) for $129 if you buy two 119 each and shipping i paid for two can was only $25 so do the math
265 for the whole create (two cans 2160 rounds)
just use the right size screw driver and put lots off pressure down ward on it. it will not slip . i just convert my saiga 5.45 x 39 yesterday and it took only 30 to 40 minutes and no problem with screws.