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AD-B2 Cantilever Mini ACOG Mount

The AD-B2 Cantilever Mounts are a one-piece Mini ACOG mount that adds overall height and allows for a rearward position of the Mini ACOG and similar sights. The AD-B2 Cantilever mounts fix the eye relief issue commonly found with mounting the optic traditionally. The .75" reverse cantilever will allow the user to place the eye piece of the optic much farther rearward without interference. This mount is ideal for the 1.5-3x Power Mini ACOG Scopes, such as the TA33 or TA44 and will also fit the Sightmark Wraith Mini, and Primary Arms GLX 2x, SLX 1x/3x Micro Prism Scopes. This mount is compatible with other manufacturer's spacers. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock Titanium Lever system to accommodate both in-spec and out-of-spec rail systems.

The B2-L Mount features the same footprint as our standard B2 Mount, however the overall length has been shortened to match the SLX Micro Prism Scope

**The B2-C and B2-S will not clear BUIS, only the B2-M and taller mounts will. The B2-M will only clear the Magpul MBUS Pro/ MBUS 3 Rear Sights and MI Combat Rear Sight**


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The AD-B2 Cantilever Mount features the Patented QD Auto Lock Lever system which has the following advantages:

  • Does not require proprietary tools for adjustment.
  • Can be adjusted with your finger or a flat blade screwdriver.
  • Lever can be configured to lock to the front or the rear.
  • Superior clamping surface to insure maximum rail engagement.

Materials & Construction

The AD-B2 Cantilever Mount is precision CNC machined from a block of 6061 T6 aluminum and finished in hard coat type 3 Mil-Spec anodize for a rock hard lasting finish.

  • Precision machined from 6061 T6 Aluminum.
  • Hard coat anodized for a lifetime of performance.
  • Fully adjustable to fit both in spec and out of spec rail systems.
  • American Defense MFG, LLC. products feature a lifetime warranty.
  • Features the Patented QD Auto Lock Lever system.
  • Made with pride in the U.S.A.


The AD-B2 Cantilever Mounts have the following specifications:

  • Weight
  • B2-S: 2 ounces

FFL Terms and Conditions - Any items placed on the same order as a firearm/lower receiver will also be shipped to the FFL. If you would like additional items shipped to you directly, please place them on a separate order. To expedite your order, please have your dealer fax or email their FFL to us. If the dealer you are using to transfer a firearm has not sent us a currently updated FFL to put on file, there will be an extended period of time needed to process your order. Due to the high volume of orders, please allow up to two weeks for delivery of firearms. Email: [email protected].

quality mount - right tool for the job!

Who knew getting the right optic mount setup for a Magnum Research BFR 44 Mag would be so difficult? Thanks to the odd rail this revolver comes with, the standard Pic mount for Primary Arm's SLx 1x optic wouldn't fit... and not even close due to the non-standard rail slots. <sigh> I required either a no-bolt or single bolt mount (latter obviously preferred thanks to the heavy recoil platform), so the AD-B2-L-STD AD-B2 Cantilever Mini ACOG Mount looked to be just the ticket, depending on how wide that bolt turned out to be. And naturally, it was a bit wider than the rail's slots, requiring a little judicious Dremel application, but once that work was complete, it fit like a glove. Now the optic is optimally mounted as low/close to the bore axis as I could want, and I have exactly the setup I've been looking to create. Thanks ADM for offering this quality mount at a reasonable price!
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