It’s a full-sized replica, with lights and sounds. ThinkGeek says, “Turn it on and you’ll hear a power up sound and watch the power meter fill up. Reach in, grab the handle, and you’re ready for action. Quickly pull the trigger and you’ll hear a single fire sound and the end will flash. Hold in the trigger, though, and you’ll watch the power meter fill and the sound intensify until you release the trigger, firing a charged shot!”
It could be fun. I have to say, though, that for $79.99 they could include the 3 AA batteries.