Since we posted the piece about the Magpul Quad Stack magazine, I thought it would be interesting to inject into the discussion this newly released magazine by ARMATAC. Whereas the Magpul Quad ...

The Firearms Blog has a post on a patent filing from Magpul Industries for a so-called "quad-stack magazine." Basically, as TFB puts it, the slightly wider magazine accomodates what looks like ...

22 LR pistols geared for target shooting ... transparent, jumbo-sized “quad stack” magazine that houses a whopping 33 rounds. If that’s not enough, Kel-Tec is offering an optional magazine ...

The quad-stack magazine is revolutionary in its own right. With four rows of .22 LR ammunition, just watching this handgun in action alone is a thing of beauty. It is completely transparent and ...