[youtube]http://www.youtube.com/watch?v=gArIqxAQUoA[/youtube]
Travis Haley just announced two new versions of his Thorntail Adaptive Light Mount for rail systems. One is for SBRs and the other to mount SureFire's 620 and Millennium series lights.
Thorntail SBR Scout is a Thorntail with a shorter arm so the light head doesn't extend into the muzzle blast area of your rifle. Rings are available for .830", 1", 1.030". The mounts are $70 with rings, or $50 if you are mounting a SureFire M600/M300 series light and don't need the rings. The SBR mount is available mid-May.
The Thorntail Mil/620 fits the Millennium series and Scout M620. These lights have a wider mounting base and won't work with the standard Thorntail. The Mil/620 still tucks the light in to the 45˚on your quad rail. Also $50 without rings. The mount is also available mid-May.
I have been running a ringless Thorntail with a SureFire M300 Scout Light and think it is the best mounting solution out there. It pushes the light out front to mitigate barrel shadow, keeps the light out of the way of my hands and tucks the light out of the way of other devices.
