Daniel Defense 1 O'Clock Offset Rail Assembly

Stock Status:

Out of stock


The Daniel Defense 1 O'clock Offset Rail is optimized for mounting miniature red dot optics in the 1 O'clock (right-hand) or 11 O'clock (left-hand) positions for quick, non-magnified, transitions when employing magnified primary optics on AR-type rifles with MIL-STD-1913 rails. The geometry allows for zero cheek-weld shift during the transition. This facilitates very fast transitions from magnified to non-magnified optics, and back. The 1 O'clock Offset Rail can also be used to mount a variety of lights or other accessories that mount to a MIL-STD-1913 rail. By flipping the part upside-down, one can mount a light in a good position for use with a vertical foregrip.

Updated for 2014, the 1 O'Clock Offset Rail now utilizes our patented Rock and Lock one piece mounting system, creating an even more robust and streamlined mounting surface as well as simplified installation on any MIL-STD-1913 picatinny rail..

All Daniel Defense Rails are built to the 1913 Military Specification and are 100% Quality Assurance checked for conformity to the specification.

  • Optimized for Miniature Red Dot Optics
  • Zero Change in check weld for transitions
  • Super-Fast Transitions
  • Adaptable for other uses
  • Light weight


  • Aircraft Grade 6061-T6 Aluminum
  • Military Specification Type III Hard Coat Anodized
  • Made in the USA!


All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your rail system in the most expeditious and inexpensive manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer's products. Be sure to retain your sales slip as proof of purchase date when making a claim.

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

7 Reviews

  • 5
    Daniel Defense 1-O' Clock Offset Rail Assembly

    I just recently ordered (2) Daniel Defense "1- O' Clock Offset Rail Assemblies from BCM, specifically to mount Trijicon RMR's. One, went on my BCM RECCE (none better in my opinion). The DD mounts are of excellent manufacture, lightweight, very compact in design, and I'd highly recommend this product to anyone wanting a very good mount, that contributes to a great zero-hold.

  • 5
    DD Offset Rail Assembly

    I received the above DD part from Bravo company.
    The mount is solid and a great finish. Only what you would expect from DD.
    I needed it to mount on a HK pic rail. The specs were off on
    my pic section so the mount didn't work for me. Again The DD rail was in spec checked on my Ar rails.
    Bravo Company's Customer Service was prompt and explained my problem. I filled out the RMA protocol for most returns.
    It was as shipped and they informed me of the return. Very
    professional. So this is a different review but was happy with the quality DD part but didn't work for my need. And I was happy with Bravo Company.

  • 5
    Daniel defense 1 0' offset rail mount

    The bomb love the offset rail mount for the vortex venom red dot sight I installed on my AR bravo company carbine, beats flip up sites hands down and spot on ROCKS!!!!

  • 5
    Daniel Defense 1 O'Clock Offset Rail Assembly

    Got a Burris fast fire 2 scope with the red dot on top and I hated moving my head off of the buttstock to use the red dot so I got the 1 o' clock offset and it makes so much difference and I don't fog up the glass on the scope, and I can make my transitions so much faster.

  • 5
    Great quality, quick shipping

    Product was simple to add on to my rifle, functions as performed, and is low key as an offset rail.

  • 5
    Off The Rail

    This DD 1 o'clock mount is perfect. Built like a crowbar and positions a red dot, reflex sight, or weapon light exactly where you want. Strong recommendation for this product.

  • 5
    Offset Rail

    Received quickly, very high quality unit. Works great. (used for offset red dot install on M4)