Not sure about s/h costs from Classic, but with the Amend2 being just 43 cents cheaper per magazine than something more proven like Magpul PMAGs, it doesn't make sense to me.
MAGPUL PMAG MOE 5.56 30RD BLK
MAGPUL PMAG MOE 5.56 30RD BLK
MAGPUL PMAG MOE 5.56 30RD BLKAnd a side note haven't seen the Magpuls for a little more. Not by my standards. 10 pak magpuls usually run $100 and singles about $11 ea.