Interesting range-toy / conversation piece, but I really see no practical application - a G26 with a 10 round mag inserted and one in the pipe set along side of another 10 round mag takes up almost the identical amount of space in a rectangular bag (pocket) 6.5"x1.5"x4.5" , plus it's pull and play so to speak. Something out of a James Bond movie ? sure - practical in the real world not really. That being said, If you want it, get it - there are worse things to spend money on (ie. building a "glock" from the ground up which ends up costing more than a new REAL one... see my poly80 pistol post...)