QDX® Sling Mount

(21 reviews) Write a Review
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Product Overview

Now shipping with our new custom Torx T20 fastener!

QDX® M-LOK Sling Mount - Our versatile take on the standard QD sling mount. Made out of 7075-T6 Aluminum with a Type 03 Hardcoat Anodizing, and weighing in at a scant 0.3oz to help minimize overall weight. By rotating the mount to allow for parallel QD insertion, we effectively reduced the QD socket footprint (with sling attached) by 16% and the sling eyelet “height” off the rail by 37%. Additionally, the QDX allows for use with most HK-style hook attachments to provide our end users with a variety of options, and the flat forward side of the mount can even be used to brace against vertical barriers to provide a more stable shooting position. Taking up only 1 M-LOK slot, the QDX is also designed to fit perfectly inside the accessory cutout on our XOS-H, making it one of the most multi-purpose accessories available. 

Ships Free and Made in USA

  • XOS-H Scale Compatible
  • Mount Type: M-LOK
  • Footprint: 1-Slot
  • Height: 0.61"
  • Length: 1.57"
  • Width: 0.625"
  • Weight: 0.30oz w/ hardware
  • Material: 7075-T6 Aluminum
  • Finish: Type 03 Hardcoat Anodizing
  • Color: Carbon Black, Terra Bronze®
  • Hardware: US Made 416 Stainless M-LOK Nut
  • Fastener: US Made T20 Torx Fastener w/ Nylon Thread Patch

Sling Attachment Fitment:

  • QD Sling Swivel
  • HK Hook
  • Mash Hook
  • BFG ULoop
  • Paracord 

Does Not Fit:

  • Magpul QDM
  • Magpul Paraclip
  • Uncle Mike's Sling Swivel



© 2024 RailScales LLC All rights reserved. RailScales®, QDX® XOS®, XOS-H®, Terra Bronze® are registered trademarks of RailScales LLC.

For all patents and trademarks, see


(21 reviews) Write a Review

21 Reviews Hide Reviews Show Reviews

  • 5
    Very Nice QD Mount

    Posted by N. Cunningham on Apr 6th 2024

    I recently built a lightweight ADM UIC build and I used alot of FCD components but after adding their heavy qd mount the lightweight build didn't feel so lightweight. So while on the hunt for a different QD mount I came across this RS QDX. I'm familiar with RS and have been a customer for years so even tho it's pricey I still decided to pick one up. This is well machined and looks great. Inserting QD just feels better Inserting and sling isn't being pull at a right angle from handrail but is inline with sling strap. This does protrude out more than the typ qd mount but it isn't to bad. This will lock your qd swivel in place and is made so the swivel won't twist and mark up handguard. I never had a aluminum qd mount fail but they do wear a little faster where aluminum or titanium usually don't wear at all imo. Cool looking piece glad I got one and they come in a nice little box with padding kinda boutique style.

  • 5
    Very easy to instal, looks incredible and works for multiple different functions

    Posted by Jerrad Jordan on Apr 3rd 2024

    “ Austin Powers” Its groovy baby

  • 5

    Posted by jayson on Mar 6th 2024

    After trying other options from different manufacturers, this little guy stands out as the clear winner. Its versatility for a variety of tactical setups is truly unmatched. I was impressed with how easy it was to use and how well it performed. It is clear that this product was designed with the user in mind. I highly recommend it to anyone looking for a reliable and versatile option for their tactical needs. Overall, this product is definitely worth the investment.

  • 5

    Posted by Walter on Jan 13th 2024

    I bought this for my FN-15 DMR3. Excellent product!!!

  • 5
    Awesome low profile mount!

    Posted by Mike D. on Nov 3rd 2023

    Great little QD sling mount! It matches my burnt bronze AR so well! I prefer the front to back attachment point as my AR pistol only has a 9 inch hand guard so having the sling mount point towards the rear makes room for my hands when gripping the handguard. No issues with the QD attachments, and provides a very satisfying click when locked in. Overall quite happy with this item. The price is fair in my opinion, as a lifetime warranty is included with all their gear.

  • 5
    Slick QD mount

    Posted by Jack Previte on Oct 5th 2023

    This QD mount is excellent; it's much easier to insert the QD for your sling than for one that sits perpendicular/flush with your handguard. Also looks fantastic.

  • 5
    QD sling, Anchor foregrip

    Posted by Brandon Roberts on Apr 3rd 2023

    Cool products, cool people.

  • 5
    qdx sling mount

    Posted by b on Feb 20th 2023

    5/5 product quality 5/5 customer service

  • 5
    Lowest profile sling mount

    Posted by Ryan on Dec 7th 2022

    I really wanted the strongest, lowest profile sling mount I could get. So far, this this is working perfectly.