This discussion is flawed from the beginning. Rifles come in a lot of different categories that beautiful or ugly. For example, I've got a stainless Model 70 on a black factory composit stock. Certainly not a "beautiful gun" nor was it built to be. When I look at it, I see a "serious" purpose built rifle. A lot of the most deadly guns we have aren't pretty. They were built to shoot well and hit and kill what they were aimed at. Then we have a lot of mediocre stuff that is semi-functional, i.e. it works....sort of. Below that we have the functional stuff...you pull the trigger and it goes bang and a bullet comes out more or less in the direction aimed...although not necessarily with the ballistics to do the job intended.

What I call an UGLY gun is a gun of piss poor design, trashy workmanship and junk for material....basically garbage disguised as a firearm. The Jap Nambu comes to mind and the French had a machinegun whose name escapes me that was such a bunch of trash it wouldn't melt intogood manhole covers.

And if we want to split hairs, I can think of several other categories. But the world does not consist of just the beautiful and the ugly.