I'm going to say basically what extrude said.
In my opinion, these models would not "fit" in Blockland. The outside of every weapon is beveled and the barrels all have 10-14 slices. These would be great in an older game, say from 2002, that can't handle too many poly's. The models themselves are great and perfect, but are not fit for Blockland. Were a blockhead holding these, it would look very out of place, similar to how a T+T gun would look if it were in Team Fortress 2.
I agree with Shell and ShadowsfeaR (minus the harsh words).