Radian Ultralight QD End Plate for AR-15
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Fits standard AR-15/M4 carbine and rifle receiver extensions. Installs under the castle nut.
Not sure it fits your rifle? Ask us before you order
The Radian Ultralight QD End Plate is a receiver end plate with an integrated ambidextrous quick-detach sling socket for AR-15 and M4 rifles, fitting standard carbine and rifle receiver extensions.
A lightweight receiver end plate with a built-in ambidextrous QD sling point — clean, strong, and barely there.
The Radian Ultralight QD End Plate adds a flush, ambidextrous quick-detach sling socket to your receiver extension while trimming weight over bulkier plates. Machined for strength where it matters and cut away where it doesn't, it gives you a solid, rattle-free QD mount that rotates freely for a two-point or single-point sling.
Fits standard AR-15/M4 carbine and rifle receiver extensions and installs under the castle nut in place of a standard end plate. That means the castle nut has to come off, so a castle-nut wrench is required, and the nut should be re-torqued and staked afterwards. QD sling swivels and the sling itself are supplied separately. A Magpul QDM quick-disconnect swivel fits the socket, and the takedown and pivot pin set is the other Radian lower-receiver part we list.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Standard AR-15/M4 carbine and rifle receiver extensions |
| Type | QD sling end plate |
| Finish | Black |
| Mount interface | Ambidextrous QD sling socket; installs under the castle nut |
| Made in | USA |
| Brand | Radian Weapons |
| MPN | R0078 |
A rear sling point that weighs nothing. Order the end plate 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 or browse all Radian Weapons.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Standard AR-15/M4 carbine and rifle receiver extensions |
| Type | QD sling end plate |
| Finish | Black |
| Mount interface | Ambidextrous QD sling socket; installs under the castle nut |
| Made in | USA |
| Brand | Radian Weapons |
| MPN | R0078 |
| Category | Lower Parts |
| Shipping weight | 0.03 kg |
| Barcode | 817093020774 |
£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.
It fits standard AR-15/M4 carbine and rifle receiver extensions and sits under the castle nut in place of your existing end plate. Any lower with a standard threaded rear and a standard receiver extension will take it. If your rifle uses a proprietary buffer tube or a one-piece receiver extension assembly, check before ordering.
It adds an ambidextrous quick-detach sling socket at the rear of the receiver, so a QD swivel can go on either side and the swivel rotates freely instead of twisting the sling. The plate is machined to keep weight down while staying solid, so the mount does not rattle in use. It replaces the plain end plate rather than adding another part to the rifle.
A QD socket on the end plate sits further forward than one on the stock, which suits a single-point or a short two-point sling and keeps the mounting point on the receiver rather than on a stock you might change later. Stocks with built-in QD sockets do the same job a little further back. Other rear sling options are gathered in <a href="/collections/rifle-slings-sling-mounts">rifle slings and sling mounts</a>.
It is more involved than a drop-in part, because the castle nut has to come off before the old end plate will clear. You will need a castle nut wrench and a way to hold the lower securely, and the nut should be re-torqued and staked or thread-locked afterwards. If you would rather not torque a castle nut yourself, a gunsmith will do it quickly; QD swivels and the sling are supplied separately.
Sling mounts are sent 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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