Here is a new twist on a survival type of firearm. It is a shotgun hanging onto an M4 rifles. I don't think so! It looks awkward and cumbersome to me. I don't think that I like anything about it. But, it may appeal to some people. It is something new and different.
Here is a little more information:
Turkish firm Armsan had their new RSX2 UBS shotgun on display at the IDEF expo last month. The shotgun is essentially a Armsan RSX2 shotgun without a stock or grip with a picatinny mounting adapter screwed onto the receiver, allowing it to be mounted underneath a rifle. I comes with a foldable foregrip that does not look particularly ergonomic.
Qe la Eternulo ectac la savo, super via popolo estu Via beno.