Daniel Defense 1 O'Clock Offset Rail for AR-15
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Fits any MIL-STD-1913 Picatinny rail on AR-type rifles, including UK straight-pull AR-15 builds. Optimised for miniature red dot optics and takes other 1913 accessories such as lights. Reversible to the 11 o'clock position for left-handed shooters. Requires enough continuous rail for the mount to clamp to.
Not sure it fits your rifle? Ask us before you order
The Daniel Defense 1 O'Clock Offset Rail is a Rock & Lock offset rail section for AR-15 and M4 rifles, placing a miniature red dot at the 1 o'clock position — or 11 o'clock when inverted for a left-handed shooter — on any MIL-STD-1913 rail.
Roll the rifle, not your head. An offset dot beside a magnified optic, with zero change in cheek weld.
A magnified optic is the right answer until something appears at fifteen metres. The usual fix is a second sighting system canted off the main rail, and the detail that decides whether it actually works is whether you have to move your head to use it. Daniel Defense's offset rail is designed so there is no change in cheek weld during the transition — you roll the rifle slightly and the dot is there.
It is optimised for miniature red dot optics and takes any MIL-STD-1913 accessory, so it is equally useful for a light. Inverted, it positions a light clear of a vertical foregrip. It mounts with Daniel Defense's patented Rock & Lock one-piece system, is machined from aircraft-grade 6061-T6 aluminium, is Military Specification Type III hard-coat anodised, weighs 1.1 oz (31 g) and is made in the USA.
On a UK straight-pull AR-15 running a magnified scope for deliberate shooting, an offset dot is the cheapest way to keep a close-range option without touching the primary optic's zero or its mount.
Fits any MIL-STD-1913 Picatinny rail on AR-type rifles, including UK straight-pull AR-15 builds — normally the top rail of a flat-top upper or a rail-topped handguard. You need enough continuous rail beside or ahead of your primary optic for the mount to clamp onto, so check the space you have before ordering. The offset rail carries the optic's own mount, so a miniature red dot with a standard Picatinny footprint attaches to it exactly as it would to the receiver rail. Inverted, it sits at 11 o'clock for a left-handed shooter, or below the centreline to position a light clear of a vertical foregrip.
| Platform | AR-15 / M4, and any MIL-STD-1913 rail |
|---|---|
| Fits | MIL-STD-1913 Picatinny rail; miniature red dot optics and other 1913 accessories |
| Type | Offset rail section at 1 o'clock, reversible to 11 o'clock |
| Material | Aircraft-grade 6061-T6 aluminium |
| Finish | Military Specification Type III hard-coat anodised |
| Weight | 1.1 oz (31 g) |
| Mount interface | Patented Rock & Lock one-piece mount to MIL-STD-1913 Picatinny |
| Made in | USA |
| Brand | Daniel Defense |
| MPN | 03-029-13017 |
A close-range answer that costs you nothing in position. Order the Daniel Defense 1 O'Clock Offset Rail 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: AR-15 Parts & Accessories or browse all Daniel Defense.
| Platform | AR-15 / M4, and any MIL-STD-1913 rail |
|---|---|
| Fits | MIL-STD-1913 Picatinny rail; miniature red dot optics and other 1913 accessories |
| Type | Offset rail section at 1 o'clock, reversible to 11 o'clock |
| Material | Aircraft-grade 6061-T6 aluminium |
| Finish | Military Specification Type III hard-coat anodised |
| Weight | 1.1 oz (31 g) |
| Mount interface | Patented Rock & Lock one-piece mount to MIL-STD-1913 Picatinny |
| Made in | USA |
| Brand | Daniel Defense |
| MPN | 03-029-13017 |
| Category | Rail Section |
| Barcode | 852548002189 |
£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.
A miniature red dot optic in its own Picatinny mount, canted at 1 o'clock beside a magnified optic. It takes any other MIL-STD-1913 accessory too, so a light works equally well — Daniel Defense notes it can be inverted to position a light clear of a vertical foregrip.
No, and that is the design goal. Daniel Defense states there is zero change in cheek weld during the transition, so you roll the rifle rather than repositioning your head. That is what makes the switch fast enough to be worth having.
Yes. Inverted it sits at 11 o'clock, which is the mirror position, so the same part covers both.
Wherever you have continuous rail and the dot ends up in front of your eye when the rifle is rolled — usually just ahead of or beside the primary optic. Check the rail space you actually have free before ordering, since a long scope mount can occupy most of a flat-top upper.
Rail sections 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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