Quoted:
I need a better quality IR laser. I have a lasermax uni right now, and an M952v for a light. I was going to get a Steiner OTAL classic to replace the lasermax, but I saw the x400v by surefire, and was intreaged. The only issue I have is how far the laser will be from the bore. I am probably going to mount it as far forward as possible on my free float specter length rail in the 3 o'clock position. This will put the laser offset pretty far to the right of my bore. I thought about a thorntail but I don't want it to get ripped off in CQB. the more systems you have the more that can go wrong, so I'm looking at the 3 o'clock being my only option. I DONT WANT IT UNDER THE RAIL. Have any of you used a setup like this, with that much offset? What issues did you have? If any?
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Its not the distance from your barrel that is the issue so much as it is from your optic.
I ran this setup for a while and it worked great. Just set your laser parallel to your optic on both axis.
If I recall the center of the diode is 40mm offset to the right or left of the centerline of the barrel, and 10mm below a T-1 in a lower 1/3rd optic.
Just set the laser so it is 40mm left or right of your optic (depending on which way you mount it), and 10mm below it.
10mm below won't change elevation very much from your optics NORMAL POI at a given range, just remember that your dot is about an inch and a half offset left or right, and use the same damn hold you would with your optic otherwise.
Simple. Works great.
IWC Thorntail 45 deg. offset mount.
Due to the distance though, when you change batteries, you'll have to re-zero since it may be a little off.
I have since put the X400 on a pistol and moved to this:
Its a little heavier, but I prefer having a really good white light on a carbine. 500 lumens is better than 150, and the slaved laser is a great thing to have. No issues with batteries either.
Cons vs X400V IRC is that its quite a bit heavier.
Also, this is quality gear no need to worry about it "getting ripped off in CQB".