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BLAM-R RUGER AR-556 Bayonet Lug Accessory Mount

General Info

BLAM-R RUGER AR-556 Bayonet Lug Accessory Mount

BLAM-R RUGER AR-556 Bayonet Lug Accessory Mount

Part Number: BLAM-R

Our Price: $54.99

5 out of 55 out of 55 out of 55 out of 55 out of 5 (4 Reviews)

Quantity in Basket: None

10 available.
Ships same day if ordered by 1:00 PM Pacific Time.








This is our BLAM-R.
Designed to exclusively fit the RUGER AR-556 and the unique bayonet lug mount they have.

This mount includes dual Quick Detach sockets for popular Push Button QD sling swivels.

It also has a 1" x 3/8" slot on each side for direct attachment of a sling through the slot.
The slot also easily accepts many Snap Hooks, HK Style sling hooks, MASH Hooks and other "claw" type sling attachment furniture.
The BLAM-R mounts using a single 3/8" x 24 x 5/8" socket head cap screw. 
The set screw is aligns with and threads through the bottom of the mount into the hole in the bottom of the AR-556 gas block.
Using the included 3/8" allen key, the mount is secured for a rock solid mounting with zero movement.

  • 2-1/8" Long with 5 index positions.
  • Weighs only 1.9 Ounces 
  • Precision CNC Machined from T6061 Aluminum Billet
  • Hard Anodized [MIL-A-8625F] Black, Type III
  • Dual Sling Mounting rings are incorporated into the body to provide a sturdy mount for a sling
  • The BLAM-R accepts most QD Push-button Sling Swivels.
  • Secure, no movement, rock solid mounting using a single socket head cap screw and hex key, provided
  • Picatinny rail spacing & dimensions to accept any rail mounted accessory.
  • Mount on ANY RUGER AR-556 rifle that has an existing Bayonet Lug on the front Gas Block
  • Manufactured in the USA by Custom Defensive Products.
  • 100% Satisfaction Guarantee to the original purchaser.

  • The BLAM-R is NOT compatible if the Ruger AR-556 is equipped with MAGPUL Handguards without minor modification to the hand guard itself.

Being designed primarily for Close Quarter Battle situations, all of our mounts are specifically designed and intended to have, a slightly upward angle of about 5 to 10 degrees when correctly installed.
This angle is a functional necessity of the design to allow for the correct alignment of the sights to be nearest the center of the light beam at 15 to 20 yards. 
The angle may vary slightly, due to variances in manufacturing of the gas block and integral lug.
This alignment was tested using the SureFire X200A the X300, Streamlight TLR-1 and TLR-2, and the Insight M3 and M6 Tactical Illuminators. 
It should be correct for most quality manufactured lights & lasers.
This incorporated angle also allows for an easier and correct centering and zeroing of a laser such as on the Streamlight TLR2 or Insight M6. 

If the mount remains parallel with the barrel, ANY laser mounted on the BLAM will not have enough vertical adjustment align the dot with the sights.

If it is mounted parallel with the barrel, the light will be too low on the target, below center of mass



Product Reviews

Customer Reviews
Average Customer Review: 5 out of 55 out of 55 out of 55 out of 55 out of 5 4 Reviews
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5 out of 55 out of 55 out of 55 out of 55 out of 5 Best Iíve ever used., 9.16.2020
Reviewer: T.L. (, MI)

The adapter I received was absolutely flawless in appearance and well packaged so it wouldnít get damaged in shipping. It went on my AR556 perfectly and when I tightened the set screw it was rock solid. I mounted a light and my sling on the adapter and itís just rock solid. Itís very light weight and you donít even see it when youíre shooting much less gets in your way. I highly recommend this to anyone who has a Ruger AR556 because this adapter requires no modifications to your rifle to install. Iím very pleased I found this mounting adapter before I started to change the configuration of the weapon when itís not necessary. Thanks for this exceptional product.


5 out of 55 out of 55 out of 55 out of 55 out of 5 Really Great Product!, 7.10.2020
Reviewer: B.W. (, KS)

This is a really great upgrade for the Ruger AR-556! I wanted to add a rail to install a flashlight, without swapping out handguards or losing the front sling mount, and this is the perfect solution. Itís an ingenious design, well-constructed, and took just a few minutes to install two of them on two separate rifles. Itís big enough to serve its purpose, but not so big as to be obtrusive. I had researched some other solutions before I found this, and I definitely made the right choice!


5 out of 55 out of 55 out of 55 out of 55 out of 5 FINALLY A Mount for Ruger AR=556!, 9.5.2019
Reviewer: Garrett G. (Sparks, NV)

FINALLY! Custom Defensive Products finally gets it done for Ruger AR-556 owners. I waited from the day I bought my rifle in 2016 for a light mount for the bayonet lug. They couldn't keep them in stock but I got added to the wait list and received mine in July from the latest batch. It mounts up tight and the QD Sling fits perfect. This is what you're looking for on your RUGER AR-556.


4 out of 54 out of 54 out of 54 out of 54 out of 5 Worth the money. Some quirks., 3.23.2018
Reviewer: Greg (E., WA)

This does work well with the AR-556 and I'm glad I bought it. I have a Vltor SM-E Scout mount attached to it, which holds a Streamlight ProTac 2L. My Blue Force Gear custom padded Vickers Sling is QD-mounted to the BLAM-R. Everything works. Two quirks, though: (1) The QD mount only works if you put the male QD piece in from the top of the BLAM-R and not the bottom, and (2) the picatinny rail is angled upward, toward the muzzle end of the barrel, roughly in-line with the slope of plastic handguards. None of these issue affect my ability to use a mounted light or a QD-mounted sling. If you need to access the quick disconnect mounts from the bottom, or if you need a perfectly-flat rail mount, this is not a good product for you. Otherwise, it's a great product.



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