I'm a big fan of having a surefire forend on an HD shotgun. A bright light w/momentary and constant on has a lot of uses in a close range shooting scenario w/the lights out. You can momentarily blind and disorient an assailant, make a positive ID in the dark (high priority for HD), sweep a room, or use it for rapid target acquisition all w/out giving early warning to a potential attacker (using momentary on). I like the fact that the controls (esp. the momentary on) don't make you change your grip on the firearm to operate them. What I don't like is the $200-$300 price tag you find on them. I consider that a good price range for a new, or used, shotgun...not an accessory. I'm also not a fan of 123A lithium batteries. Too pricey, non-standard, and chances of scrounging up any on the fly are nil. So, anybody here know where to find one cheaper or know if anybody makes a good quality alternative? I've standardized my emergency supplies like radios and flashlights on AA batteries as it makes for quick and easy shopping and stockpiling w/out hurting my wallet so, alternative options requiring AA batteries are to be considered a plus.