Well, it's not that this MOC is bad (I'm actually very proud of it), it's that I built it to criticize what people didn't like in the bionicle waves after '06. So here is Argentum:
I had a surplus of silver pieces, so that gave me the idea to make a MOC that was entirely silver.
As you can see, his main weapon is a huge gun
The much awaited back view
With no weapons...
Oh, he actually HAD another weapon...
Please don't kill me
How could I make a silver MOC without including Hahli wings?
So, the idea behind this MOC is that I wanted to sum up everything that most people didn't like about the later bionicle sets. This is why he is silver (the price of silver suddenly dropped in 2007, when the mistika came along), uses a simple torso (almost standard piraka build, with a CCBS main body piece attached to it) and has that (arguably) annoying one melee and one range weapon thing going on (I thought it was cool, though). Basically, I put all these factors together, and made all of it go well together.
P.S. While I was building this, I considered that gunmetal was silver also.