Iswanie, you will probably discover, as have most Mini 14 owners (myself included) that the Mini is very bad about shooting low when the barrel heats up, which does not take very many shots at all for that to happen. As for magazines, I bought Ruger 20 round mags off of auctionarms.com or gunbroker.com (I can't remember) for $29.00 each. Yeah, that is still expensive, but they will work 100% of the time, and some of the junk aftermarket mags are not worth having, IMHO. You might also check out perfectunion.com. They have an entire Mini 14 discussion page over there, and some very knowledgable people when it comes to the Mini, how to improve accuracy, etc.