Just got one in and it's pretty bright. I tossed it on my mk25

 

 

Looks nice!

It's a reported 125-150 lumens in an old Insight M3X body. Why did you choose that over a modern more useful design like a TLR or X300u?

 

Keep in mind that the plastic locking bar on those break like crazy. Call L3 now and ask for spares so when the gun goes flying off you can replace it right away instead of waiting for a week. I must have gone through a dozen of them on my M5 and M3 lights when I had one of those at work.

Bought it because I was going through the lypseys site and saw it. I already have gotten sure fire and streamlight so I figure I'll get this in and see if it's worth stocking

How much was it? I see them online for anywhere from $150-$400.