I have a HK tactical light for the 9/40. It has a new bulb (just put in today) and 4 new batteries. Includes the box and the pressure switch. Light is in excellent condition, top of the box a little scratched up. The light does not say MK2, I believe it is an older light, but still in excellent condition. Looking to trade for a light that will fit a Glock 19. Insight, Streamlight, etc. Cash price $75. I can ship to you to save a drive.