Thorntail 1913 Offset Adaptive Light Mount

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Thorntail 1913 Offset Adaptive Light Mount

Patent Pending

Product Details:

THORNTAIL Offset 1913 Adaptive Light MOUNT-N-SLOT was designed to expand the mounting locations and illumination capability of rail-mounted weaponlights.

Ambidextrous and Cantilevered design provides 8 different mounting positions and 4 additional adjustments fore / aft on a quad rail system. This enables the Operator to position the rail mounted weaponlight up to several inches beyond the end of the forend or rail system allowing the shooter to place the support hand farther forward on the weapon, improving the shooter's control, speed and accuracy while increasing usable space for attaching IR devices, lasers, grips, etc.

45 Degree Offset design places the bezel of the weaponlight to reduce barrel shadowing during critical low light situations.

Can also be used as a 45 Offset mounting platform for BUIS.

LESS THAN an OUNCE! Ultra-lightweight THORNTAIL Offset 1913 Adaptive Light MOUNT-N-SLOT weighs a mere .773 ounces (21.915G). Weighs a fraction of the weight of an extended length rail system!

THORNTAIL attaches to any 1913 Picatinny rail.

THORNTAIL is CNC machined from BILLET 6061-T6, Black Anodize TYPE III to MIL-A-8625F and 100% Berry Amendment Compliant.

THORNTAIL comes complete with the necessary instructions, tools and hardware required to attach your light to your weapon. No Gunsmithing required.

100% LIFETIME WARRANTY. PERIOD. Return for full refund.

Designed with Haley Strategic Partners and MADE BY AMERICANS at Impact Weapons Components in Colorado!

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit***

17 Reviews

  • 5
    All products are great

    Posted by Stephen Worden on Apr 10th 2019

    I've ordered BCM AR pistols, uppers, all sorts of parts and accessories. I am completely satisfied with everything I've ever ordered. Shipping is fast and the BCM line of products are the best.

  • 5
    Thorntail offset Mount

    Posted by anonymous on Apr 10th 2019

    The product is as advertised and more. A very good accessorie that fits a demand. These type of mountaining options are critical in achieving a good weapon system.

  • 5
    Great for Positioning Gear Where you Need it

    Posted by Dustin Tilley on Dec 28th 2016

    A little tough to install , but gives you the opportunity to put gear where you need it.

  • 5
    Thorntail mount

    Posted by bugmanski on Sep 22nd 2016

    Works great for mounting firearm light on AR. Positioned light exactly where I wanted it.

  • 5
    Front sight from Diamond Head

    Posted by Richard Crimmins on Jun 19th 2016

    Great product, well made. The height on it this sight is excellent. The Troy sight and other manufacturers sit too low so that post has to be raised all the way up which is just a poor design.

  • 5
    Thorntail 1913

    Posted by Mark Jonas on Apr 26th 2016

    Simple install and the function is just what I was looking for. Got this along with my Inforce light on two of my builds now. Works great.

  • 5
    Great quality

    Posted by anonymous on Mar 14th 2016

    I bought another one of these mounts bc I run this mount with an inforce light on my work FA riflen for a couple years now and it has never been issue. If you run your at 10 or 1 o'clock, this is one of the best 1913 mounts you can get.

  • 5
    Love it

    Posted by Thien Au on Feb 29th 2016

    Fits well and very light weight. Order processed and shipped very fast. Thanks

  • 5
    Great design

    Posted by C B on Feb 15th 2016

    Love this mount. Puts the light where it needs to be in my opinion. Bought a second one for next AR build.