There is a pretty decent gun store in town that has really awesome service and cool stuff, but I lost a small amount of respect when I saw they had a few of these for sale and one mounted on a rodded out Bushmaster M4gery. Personally, I just don't like the feel of a 37 or 40 mike-mike launcher on a M4gery, let alone a f****** Glock. The balance was really weird, I thought and it not only made it front heavy, but extremely awkward. Maybe the company sought to redefine the term "double tap"? Not to mention the legal implications, the idea is just absurd. I use a single point sling, so I have no trouble rapidly transitioning between rifle and pistol or rifle and aux. weapon, which is a 870 Police Magnum or a 7.62x39 AK variant. As posted before, if you need an AR use an AR, if you need a Glock, use a Glock. Can you imagine your AR going down and you needing to clear a house? You would be caught with your pants down while taking your pistol off your rifle. Perhaps this company will make a mount so you can add a machete to the Glock? I think Airsoft is to legit for this piece of fuck product.