So where the he'll is my 12 gauge AR10MajorPandemicSep 09, 2010∙ PaidShareIf I can do this with my stock Magpul LR308 mags someone MUCH smarter than me should have an upper for my DPMs 308 available by now.Continue reading this post for free, courtesy of MajorPandemic.Claim my free postOr purchase a paid subscription.PreviousNext