I've had my "sawed off" LBB for a while now. It basically has the plastic surrounding the barrel sawed off to allow faster and easier dart loading into the stock barrel. Here's a picture of what it looked like:

Not particularly satisfied with the looks, I got a red dot sight and a $0.99 toy M-16/M-4, hoping to make my LBB look like some kind of SWAT weapon. I then spent several hours (watching Adult Swim on CN at the same time





I might eventually take up Arcanis' advice to mod the barrel, but since I don't have access to a dremel, hot glue guns, etc. (all of my mods usually involve only a multitool and a sanding block... sometimes a saw), I'll wait on that. The stefans that I use (made by someone at my church - cerealkiller here at NH) fit just fine - with a ramrod, anyway. Pretty satisfied, overall.
Any additional mod advice, anyone?