Rex grinned for a moment, then reached out to point out a few details. "It's best to keep it holstered until you absolutely plan on using it. The power source glows, and I couldn't cover it without compromising the overall safety of the piece, so it's not ideal for stealth or subtlety." Pause. "And it isn't as powerful as what you have to work with back home. But if you use it sparingly, it should stay charged for a long time-- it gives you less to worry about than bullets. When the crystal starts to dim, come to me for a new one."