Some individuals employ, what I believe, deceptive means to obtain a firearm sell.

I come across Krag carbines all the time, that are for sale on Gun Broker, that have clear and sharp photos of the item being offered.  However, when you get to a picture of the rear sight...the picture is all of sudden out of focus and blurry?

In this case, most of the write-ups will have very little info or say something like "got this gun at an estate sale and don't know much about it...blah, blah, blah"...or "let the pictures speak for themselves."

Just saying that you need to ask the seller questions like "is that a carbine rear sight on that carbine?"  Also, do your homework when purchasing that super hot great deal because it may turn out to be a dud.