Daniel Defense MFR Rail M-LOK QD Sling Mount
Mix and match across the range: 2 items save 5%, 3 save 10%, 4 or more save 15% on your whole basket.
Daniel Defense lists compatibility with the MFR Rail, Omega Rail and DELTA 5 stock, and states it is not compatible with the MFR XL Rail, DD5 rails or other manufacturers' M-LOK systems. Mounting points front and rear on both sides. A push-button QD sling swivel is required and is not included.
Not sure it fits your rifle? Ask us before you order
The Daniel Defense MFR Rail QD Sling Mount is a steel M-LOK sling mount for Daniel Defense MFR and Omega rails — and the push-button QD sling swivel is not included.
Read the part number twice: this one is the mount on its own. If you want the swivel in the box, it is a different Daniel Defense part.
Two Daniel Defense sling mounts look almost identical in a photograph and differ in one commercially important way. This part, 03-021-15136, is the mount by itself — you supply the push-button QD swivel, or move one across from another rifle. The Rail Mount QD Swivel Attachment Point, 03-021-30029, comes with a Heavy Duty Push Button QD Sling Swivel already in the box, and clamps to Picatinny rather than M-LOK. If you have no swivel, buy that one.
What this mount does well is disappear. It is made entirely from steel with a heavy manganese phosphate coating, weighs 0.3 oz (9 g), and has a limited-rotation interface so the sling point cannot spin under load. Mounting positions are provided at the front and rear on both sides of the rail, which gives four sensible places to hang a sling and keeps the attachment tangle-free. A 1/8" Allen wrench is included, and it is made in the USA.
Daniel Defense lists this mount as compatible with the Daniel Defense MFR Rail, the Omega Rail and the DELTA 5 stock, and not compatible with the MFR XL Rail, DD5 rails, or other manufacturers' M-LOK systems — so treat it as a Daniel Defense rail part rather than a universal M-LOK accessory, and check your handguard before ordering. Mounting points are at the front and rear on both sides. A push-button QD sling swivel is required to attach a sling and is not supplied; if you would rather buy the version that includes one, take the Daniel Defense Rail Mount QD Swivel Attachment Point instead, which mounts to Picatinny and ships with the swivel.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Daniel Defense MFR Rail, Omega Rail and DELTA 5 stock — not the MFR XL, DD5 rails or other manufacturers' M-LOK |
| Type | M-LOK QD sling mount — swivel not included |
| Material | Steel |
| Finish | Heavy manganese phosphate |
| Weight | 0.3 oz (9 g) |
| Mount interface | M-LOK, limited rotation; push-button QD swivel socket, swivel not supplied |
| Made in | USA |
| Brand | Daniel Defense |
| MPN | 03-021-15136 |
The mount only — check you already own the swivel. Order the Daniel Defense MFR QD Sling Mount today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Rifle Slings & Sling Mounts, M-LOK Accessories or browse all Daniel Defense.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Daniel Defense MFR Rail, Omega Rail and DELTA 5 stock — not the MFR XL, DD5 rails or other manufacturers' M-LOK |
| Type | M-LOK QD sling mount — swivel not included |
| Material | Steel |
| Finish | Heavy manganese phosphate |
| Weight | 0.3 oz (9 g) |
| Mount interface | M-LOK, limited rotation; push-button QD swivel socket, swivel not supplied |
| Made in | USA |
| Brand | Daniel Defense |
| MPN | 03-021-15136 |
| Category | Sling Mount |
| Barcode | 818773021050 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
No. This part number, 03-021-15136, is the mount on its own and you supply the push-button QD swivel. The Daniel Defense part that does include a swivel is the <a href="/products/daniel-defense-rail-mount-qd-swivel-attachment-point">Rail Mount QD Swivel Attachment Point</a>, 03-021-30029, which comes with a Heavy Duty Push Button QD Sling Swivel and clamps to Picatinny rather than M-LOK.
No, and this is the thing to check first. Daniel Defense lists it as working with the MFR Rail, the Omega Rail and the DELTA 5 stock, and as not compatible with the MFR XL Rail, DD5 rails or other manufacturers' M-LOK systems. If your handguard is from another brand, ask us before ordering.
There are mounting points at the front and rear on both sides, so you have four sensible positions. The interface is limited-rotation, which stops the sling point spinning round when the rifle takes its weight.
The steel mount and a 1/8" Allen wrench. Nothing else is needed to fit it, but you will need a QD swivel to attach a sling.
Sling mounts are dispatched from the United Kingdom with £5 tracked UK delivery in 7–10 business days, and you'll get tracking by email when it ships. If a part turns out to be the wrong fit, see our returns policy or <a href="/pages/contact">contact us</a> and we'll help sort it.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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