Yep, BC is fully programmable with six (6) sound banks to choose from with your own recorded/mixed sounds. You can add primary (muzzle flash) and secondary (power levels, charge rates, ammo counters) LEDs and configure them to do whatever you want (i.e. flash, shimmer, fade in/out, etc etc). You can even have mini-display screens.
I know that they are NOT available at Gamestop.com. It's been SOLD OUT for about a month. If you see one in the storefront and want one, better snag it. They are already going for as much as $400 on eBay (if your desperate).
that guns sweet, but wasnt it like a $350 price tag for that and the game? yowch! Hows the weight? I saw them whoring it out at SDCC and there was a long wait to get a pic with it so i just passed and assumed it was cheap plastic