Are you kidding? How could you NOT want one? As soon as you get one of these in your hand you’ll find that the bolt mechanism is a natural fit for manipulating a light actuation mechanism. In addition to being addictive in itself, the bolt allows you to quickly activate the light in momentary-on fashion one handed or lock the bolt for constant-on illumination. Unlike a tail cap the bolt is perfect for all size hands and doesn’t have the nasty habit of getting accidentally activated in your pocket yet it’s easy to deploy and work one handed.