Mossberg 590/590A1 M-LOK Barrel Clamp

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You are probably aware that there are many M-LOK products being manufactured that are not directly made by Magpul.  There is even a company that claims that the M-LOK products they are selling are manufactured by Magpul.  They are not.  So buyer beware!

The screws that are included that attach to the T-Nuts for installation are of varying lengths.  Even Magpul uses these two different screw sizes for most of their M-LOK products - 10-24 x 3/8" button head cap screw or 10-24 x 7/16" button head cap screw.

To assist in solving this issue GG&G is including qty. (4) 10-24 x 3/8" button head cap screws with nylon thread locker patch with the GG&G 590/590A1 and M-LOK configured barrel clamp.  This will allow you to use most Magpul manufactured M-LOK accessories, as well as other M-LOK products produced by other manufacturers.

Even with this proactive approach, please be aware that the web thickness of the screw hole on other manufacturers M-LOK accessories may negatively affect fitment.  It is important to note, the included screws however, work perfectly with GG&G manufactured M-LOK accessories.

If you are using a non GG&G M-LOK accessory, even when using the GG&G supplied screws, please check and make sure that as you tighten the screws into the T-Nut, supplied with your M-LOK product, that the screws do not bottom out or make contact with the bottom of the M-LOK pocket, prior to putting the firearm and accessory into service.

Check Out The Other GG&G Mossberg 590A1 Accessories Here and the  GG&G Mossberg 590 Accessories Here.

Mossberg 590/590A1 Barrel Clamp

The factory configuration of the barrel, magazine tube, and silver soldered barrel clamp located near the muzzle, does not allow for the installation of tactical accessories like sling attachments, light mounts etc. near the front of the forearm where they would normally be located on a Mossberg 590 shotgun. Yes, you could mount accessories at the magazine cap, but that places these accessories right at the muzzle creating a long reach in order to use a light or other device. That far forward might be problamatic in a stress fire situation. The sling location that far forward is also not optimum for today's tactical shooter. However, if you like that set up for a sling mount, GG&G manufactures three different configurations.

GG&G has a solution! The GG&G 590/590A1 M-LOK Barrel Clamp. First off, it is not a generic barrel clamp! It is CNC machined specifically to fit the barrel and magazine tube of the Mossberg 590/590A1 shotgun. The billet aluminum two piece GG&G 590/590A1 Barrel Clamp provides Magpul M-LOK slots on both sides of the GG&G Barrel Clamp. The M-LOK slots are centrally located providing a super stable mounting point for sling mounts or light mounts for light or heavy lights. 

Check out the compatible GG&G M-LOK Tactical Accessories HERE!

Mossberg 590 And 590A1 Barrel Clamp Specifications:

  • Ergonomic design.
  • The Mossberg M-LOK Barrel Clamp fits the 6, 7, and 9 shot magazine capacity models. It also fits the models with the heavy walled barrels.
  • Our two part design with the use of counter pressure socket head cap screws, provide a solid installation. Wrench included.
  • The GG&G Mossberg M-LOK Barrel Clamp is CNC machined to fit the Mossberg 590 and 590A1 shotguns. Please be aware that because it makes contact with your barrel it may cause wear marks in the finish of the barrel or magazine tube. Consider using protective tape to the fingers of the GG&G Mossberg Barrel Clamp to mitigate this issue.
  • Perfect for mounting M-LOK Accessories to the Mossberg 500 and Mossberg 590A1 shotguns.
  • Precision machined from 6061-T6 billet aluminum.
  • All edges are smoothed and rounded for the shooter's safety.
  • Finish: Type III hard coat anodized in a non-reflective matte black finish per Mil-Spec.
  • Width:1.5 ".
  • Height: 2.2".
  • Weight: 2 oz.
  • Warranty: Lifetime.
  • Made In America By Men And Women Proud To Be Americans!
    Mossberg 500 Scope Mount. GG&G American Made Tactical Products

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