PMags at $11 is an excellent price and I think the cheapest I have seen them. A lot of people swear by them not at them. I don't have enough personal experience with them to give you a first hand range report. I think that they are being used in the sandbox. Seems to me I read where a guy was sending his son HK Ar mags which are very good, but high $. Somewhere along the line they got some PMags and his son started requesting those instead. I'm not sure how they hold up in bitter cold, but there are some wonderful plastics out there now, so they may be OK. I mentioned the cold as I was reading a forum somewhere that a guy, I think from Montanna was concerned about it for winter use.