Yesterday, I saw a German-made shotgun/rifle. 16 ga SBS with an 8x57 rifle underneath. Not so weird. What made it so unique was the flip up rear rifle sight, which was controlled by a tang switch. Flippin COOL! Going to try and find out what make it was, but I know it was high-cost (3G or so). Most unique gun I've ever seen. So, what is the most ________(rare, unique, weird, strange, unusual, etc.) gun you have ever seen?