Just thought I'd pass along a quick range report. Went to the range to try some reloads a buddy had done up, he has a custome Caspian gun done very much like a TRP-PRO model, he just bought 20 Gi mags for $10.00 bucks Canadian each and I was skeptical, we loaded all the mags up and ran them 3 times each without a single failure, I'd never had a problem with Gi mags in a Gi gun but never saw them run that well in a custom, the mags were had from Marstar in Ontario for any Canucks who are interested.