Description
Magpul built the MS4 Dual QD Gen 2 for the guy who can't decide between a one-point and a two-point sling, and doesn't want to. The heart of it is a pair of heavy-duty push-button QD swivels working with a precision-cast steel D-ring, so you can go from a slung, hands-free two-point carry to a snappy one-point setup without breaking stride. That flip happens with one hand, which matters when you're moving and don't have a spare moment to fuss with hardware.
What Sets the MS4 Dual QD Gen 2 Apart
The QD swivels drop into standard push-button sockets, so this sling plays nice with QD cups found on lower receivers, receiver end plates, buttstocks, and low-profile forward mounts like the Magpul RSA-QD, MSA-QD, and ASAP-QD. If your rifle already runs QD points, you're ready to clip in and go. The steel D-ring gets a Melonite finish that shrugs off wear and corrosion, so the part doing the heavy lifting holds up over years of hard use.
Comfort and Adjustment on the MS4 Gen 2
The custom 1.25-inch nylon webbing is strong, wear-resistant, and treated to cut down on chafing against your neck and shoulder. Magpul stretched the webbing length on the Gen 2 so it fits a wider range of body types and works comfortably over plate carriers and heavier gear. Overall length runs from 48 to 60 inches with a roughly 10-inch slider adjustment range. Speaking of that slider, it's a low-profile quick-adjust design that lets you cinch the rifle tight for retention or loosen it for a proper shooting position, all with one hand while in two-point mode.
One detail worth knowing: the colored webbing carries a Near-Infrared treatment to help reduce IR signature, which is a nice touch for anyone running gear at night. Made in the USA, the MS4 Gen 2 is the kind of sling you set up once and stop thinking about because it just works.
Key Specifications
- Manufacturer: Magpul Industries
- Model: MS4 Dual QD Sling Gen 2
- Manufacturer Part Number: MAG518-BLK
- UPC: 873750010793
- Color: Black
- Configuration: Convertible one-point / two-point
- Overall Length: 48" – 60"
- Slider Adjustment Range: Approx. 10 inches
- Webbing Width: 1.25 inch nylon
- Hardware: Two push-button QD swivels, Melonite-finished steel D-ring
- Special Treatment: Near-Infrared (NIR) webbing treatment
- Country of Origin: Made in USA
- Style: Quick Detach
- Product Type: Sling
What’s Included
- Magpul MS4 Dual QD Gen 2 Sling
- Two push-button QD sling swivels
- Steel QD D-ring / connection hardware
Frequently Asked Questions
Will the MS4 Dual QD Gen 2 work with my rifle's QD points?
Yes, as long as your rifle has standard push-button QD sockets. It's compatible with QD cups commonly found on lower receivers, receiver end plates, buttstocks, and low-profile forward mounts, including Magpul's own RSA-QD, MSA-QD, and ASAP-QD. If your setup doesn't have QD points yet, you'll want to add a QD mount before running this sling.
How is the MS4 different from the standard MS3 sling?
The MS4 shares the same material construction and specs as the MS3, but swaps the Magpul Paraclip attachments for two heavy-duty push-button QD swivels and a steel connection ring. That change makes it a fully QD-based system rather than a hook-in design. If you're already committed to a QD-equipped rifle, the MS4 is the more direct fit.
Can I really switch between one-point and two-point with one hand?
Yes, that quick transition is the whole point of the MS4. The steel D-ring lets you convert from a two-point to a one-point configuration on the fly, and the low-profile slider handles tension changes single-handed while you're in two-point mode. Users consistently call out how fast and simple that transition is in real-world use.
Does the MS4 Gen 2 fit larger body types and gear like plate carriers?
It should. Magpul increased the webbing length on the Gen 2 specifically so it fits a wider range of body types and armor configurations comfortably. With an overall range of 48 to 60 inches and roughly 10 inches of slider adjustment, there's plenty of room to dial it in over heavier gear.





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