For a single mag, I use the Milt Sparks pocket mag carrier on the left here. For a quickly available bugdet version, check out the
DeSantis Mag Packer Note: Link does not work? Do a search on Mag Packer on DeSantis site- (made of the same material as the Nemesis Pocket Holster), or check out
WRB Products (my double mag pocket carrier in this pic is from them).
