Description
When your optic quits at the worst possible moment, you want irons you can trust without a second thought. Daniel Defense built this fixed front and rear set for exactly that, giving you a clean, dependable sight picture that co-witnesses through most popular reflex optics. There's nothing to flip up, nothing to snag, and nothing that pops loose when you need it most. You zero it once and it holds.
What Makes the Daniel Defense Sight Set Worth Bolting On
Both sights are CNC machined from aircraft-grade 6061-T6 aluminum and finished in a Mil-Spec Type III hardcoat anodize, so they shrug off wear, sweat, and rough handling. The rear is the proven A1.5, running an M16A1-style windage wheel with a same-plane dual aperture setup, a 0.070-inch small aperture for precision and a larger ghost ring for fast, close-in work, plus 1 MOA windage clicks that stay locked down once set. The front rides low and streamlined, and the profile clears your charging handle without a fight.
Rock & Lock Mounting That Actually Stays Put
Both pieces use Daniel Defense's patented Rock & Lock attachment, sliding onto any MIL-STD-1913 Picatinny rail and clamping down with a slotted fastener threaded into a self-locking stainless steel insert. Owners routinely report these holding zero through a thousand-plus rounds without budging. Set at absolute cowitness height, they line up cleanly behind red dots like an EOTech, MRO, or similar reflex sight.
Built for Real-World AR-15 Setups
The front sight's compact footprint was designed with weapon lights in mind, leaving room for a compact light like an X300 or TLR-1 mounted forward of the sight. A concave radius on each side gives your thumb a natural resting spot for ambidextrous light activation. It's a slim, tough, made-in-the-USA setup that does one job and does it right, whether it's your primary aiming system or the backup that saves the day.
Key Specifications
- Manufacturer: Daniel Defense
- Manufacturer Part Number: 19-088-09116
- UPC: 815604010870
- Platform: AR-15
- Style: Fixed Front & Rear Combo
- Material: Aircraft-Grade 6061-T6 Aluminum
- Finish: Mil-Spec Type III Hardcoat Anodized, Black
- Mounting: Rock & Lock, MIL-STD-1913 Picatinny Rail
- Sight Height: Absolute Cowitness
- Rear Apertures: 0.070 in (small) and 0.200 in (large ghost ring)
- Windage Adjustment: 1 MOA
- Elevation Adjustment: 2 MOA
- Weight: 2.8 oz (set)
- Length: 3.6 in
- Color: Black
- Origin: Made in the USA
What’s Included
- Daniel Defense A1.5 fixed rear sight
- Daniel Defense rail-mounted fixed front sight
Frequently Asked Questions
Will the Daniel Defense sight set co-witness with a red dot?
Yes. The set is built at absolute cowitness height, so it lines up cleanly behind popular reflex optics like an EOTech, Trijicon MRO, or similar red dot. Many owners run the small rear aperture zeroed to their dot for a crisp sight picture. It also works great as standalone irons if you skip the optic entirely.
Does the front sight leave room for a weapon light?
It does. Daniel Defense kept the front sight compact and snag-free on purpose, so a pistol-type light like a SureFire X300 or Streamlight TLR-1 fits forward of the sight. The concave radius on each side gives your thumb a natural spot to activate the light from either hand.
How do you adjust windage on the A1.5 rear sight?
The A1.5 rear uses an M16A1-style windage wheel that adjusts in 1 MOA increments. You'll want a bullet tip or small tool to turn it, and once it's set it stays locked in through recoil. Do note that Daniel Defense does not include a dedicated adjustment tool in the box.
Are these fixed sights or do they flip up?
These are fully fixed sights, with no flip-up mechanism or moving parts to break or come loose. That's the whole appeal for a lot of folks who want a hard-use setup that holds zero shot after shot. If you need a low-profile backup that clears the charging handle and never fails to deploy, fixed is the way to go.






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