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.
A magnified optic is the right answer until something appears at close range. 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 optimized 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 aluminum, is Military Specification Type III hard-coat anodized, weighs 1.1 oz (31 g) and is made in the USA.
Key Features
- No cheek weld change — the transition is a roll of the rifle, not a repositioning of your head
- Optimized for miniature red dots — the intended job, and the reason the angle is what it is
- 1 o'clock or 11 o'clock — invert it and the same part serves a left-handed shooter
- Takes any 1913 accessory — useful for a light as well as an optic, including inverted beside a foregrip
- Rock & Lock one-piece mounting — patented, and simple to fit and remove
- 1.1 oz (31 g) — 6061-T6 aluminum, Type III hard-coat anodized
Compatibility & Fitment
Fits any MIL-STD-1913 Picatinny rail on AR-type rifles — 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 centerline to position a light clear of a vertical foregrip.
Technical Specifications
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 aluminum |
Finish | Military Specification Type III hard-coat anodized |
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 |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What does it actually mount?
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.
Do I have to move my head to use it?
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.
Can a left-handed shooter use it?
Yes. Inverted it sits at 11 o'clock, which is the mirror position, so the same part covers both.
Where on the rifle should it go?
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.
