Streamlight is making white light and laser combo for G42 and G43. It uses two CR 1/3N batteries and can run for 1 hour on constant white light run or 11 hours on laser only. It has 10 minute auto shut off to save batteries.
MSRP is $175
http://www.streamlight.com/en-us/product/product.html?pid=328
From: Streamlight
