Description
A shotgun without a good sling gets heavy fast, and running a barrel clamp is the cleanest way to add a front attachment point to a pump gun. The Magpul Forward Sling Mount does exactly that. It clamps onto both the barrel and the extended magazine tube of your Remington 870 or Mossberg 500/590/Maverick, giving you a stable, secure spot up front to run a sling. Because it bridges the barrel and mag tube, it does double duty by snugging up the extended tube at the same time.
What the Magpul Forward Sling Mount is Built From
This is not the polymer you might expect from Magpul. It's precision cast steel with a Melonite (QPQ salt bath nitride) finish, so it holds up to wear and corrosion and takes a beating in the field or on the range. The black finish matches Magpul polymer furniture nicely if you're building out a full setup. It's made in the USA, and the fit and finish feel a step above the cheap stamped clamps floating around out there.
Running Slings on the Forward Sling Mount
This is where the mount earns its keep. It accepts push-button QD sling swivels on either side, or you can run one-point clip-in attachments like the Magpul Paraclip, the HK hook, or the ITW MASH hook. Set it up with dual QD cups, or mix a QD on one side and a hook on the other depending on how you carry. That flexibility means it plays nice with just about any modern sling you'd want to hang off a defensive or hunting shotgun.
A couple things worth knowing before you wrench it on. The mount ships with silicone pads that sit between the clamp and your barrel so you don't mar the finish, which is a nice touch. It's a dedicated fit for the 870 and Mossberg 500/590/Maverick with an extended mag tube. If you're running a Mossberg 590A1 with its heavier barrel walls, you'll want the MAG493 version instead.
Key Specifications
- Manufacturer: Magpul Industries
- Manufacturer Part Number: MAG508-BLK
- UPC: 873750007854
- Model: Forward Sling Mount (SGA)
- Product Type: Sling Mount
- Material: Precision Cast Steel
- Finish: Melonite / QPQ Salt Bath Nitride
- Color: Black
- Fits: Remington 870, Mossberg 500/590, Maverick 88 (with extended mag tube)
- Attachment Options: Push-Button QD Swivels or Clip-In Hooks (Paraclip, HK, MASH)
- Country of Origin: Made in USA
What’s Included
- Magpul Forward Sling Mount
- Mounting hardware
- Silicone protective pads
Frequently Asked Questions
What shotguns does the Magpul Forward Sling Mount fit?
It's a dedicated fit for the Remington 870 and the Mossberg 500, 590, and Maverick 88, as long as they have an extended magazine tube installed. The clamp bridges the barrel and the mag tube, so that extended tube is what it grabs onto up front. If you're running a Mossberg 590A1 with its thicker barrel walls, that one needs the MAG493 instead.
Can I run a QD sling swivel with this mount?
Yes. The Forward Sling Mount accepts push-button QD sling swivels that snap right into either side, and it also works with one-point clip-in attachments like the Magpul Paraclip, HK hook, or ITW MASH hook. You can set it up with dual QD cups or mix a QD on one side and a hook on the other. That makes it compatible with just about any modern sling setup.
Will the clamp scratch my barrel finish?
It ships with silicone pads that sit between the clamp and the barrel to protect the finish. Users consistently note that the pads do their job and keep the barrel from getting marred. Just snug it down properly and you're good to go.
Is the Magpul Forward Sling Mount metal or polymer?
This one is precision cast steel, not the polymer Magpul is often known for. It gets a Melonite (QPQ salt bath nitride) finish for wear and corrosion resistance, so it holds up well in the field and on the range. The black steel finish also matches Magpul polymer furniture nicely if you're building out a full setup.




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