Daniel Defense Fixed Front and Rear Sight Combo, Mil-Spec Brown

Product Description

The Daniel Defense Fixed Front and Rear Sight Combo in Mil-Spec Brown, part number 19-088-09116-011, is a two-piece AR-15 iron sight set consisting of the A1.5 Fixed Rear Sight and the Rail-Mounted Fixed Front Sight, machined from aircraft grade 6061-T6 aluminium, finished in military specification Type III hard coat anodising, weighing 2.8 ounces for the pair, and mounting by way of Daniel Defense’s patented Rock & Lock attachment technology.

Fixed sights are a deliberate choice rather than a default. A folding back-up sight collapses out of the way, but it has a hinge, a detent and a spring, and can be knocked down by a sling at the wrong moment. A fixed sight has none of those failure points, which is why rifles that live in trucks tend to wear them.

The rear sight is positioned as a genuine back-up for optic users, and the front sight is built to stay out of the way: unobtrusive and snag-free, and designed to allow compact weapon-lights forward of it, with the X300 and TLR-1 as examples. That last detail decides builds, because a tall front sight base forces the light rearward into the support hand.

Key Facts

• Brand: Daniel Defense
• Model: AR-15 Iron Sight Set (Rock & Lock) — fixed front and rear sight combo
• SKU / Manufacturer Part Number: 19-088-09116-011
• Set consists of: A1.5 Fixed Rear Sight and Rail-Mounted Fixed Front Sight
• Material: Aircraft Grade 6061-T6 Aluminum
• Finish: Military Specification Type III Hard Coat Anodized; this part number is the Mil Spec Brown colour variant
• Weight: 2.8 oz
• Attachment: Patented Rock & Lock Attachment Technology
• Compatibility: AR-15 platform
• Country of origin: Made in the USA
• Manufacturer: Daniel Defense

What the set consists of

Daniel Defense builds this as a matched two-piece set:

• A1.5 Fixed Rear Sight
• Rail-Mounted Fixed Front Sight

Choosing between fixed sights and a folding back-up

Ask what the rifle is for. A rifle running a magnified optic usually wants folding back-up sights, because a fixed rear can clutter the bottom of a magnified sight picture. A carbine running a reflex sight is the natural home for this set: the dot sits over the irons, the irons stay put, and if the optic dies you still have a rifle with sights on it. Cross-shoppers comparing options will want our iron and night sights selection and the wider sights, lasers and lights category, and the Daniel Defense pages group everything we stock from the brand.

Installation notes

Both sights use the Rock & Lock interface, so they mount to a Picatinny rail rather than a gas block or a dovetail. Zeroing follows the normal order: mechanically centre the rear, set the front to height, then confirm on paper. Confirm torque figures for your rail rather than guessing — call 817-393-4000.

Ordering from Western Sport in Roanoke, TX

We are a licensed FFL and SOT dealer in Roanoke, Texas since 2007, a Daniel Defense master dealer, with a gunsmith on site who can mount and zero sights rather than handing you a box. Call 817-393-4000 with any fitment question.

Frequently Asked Questions

Q: What does the Daniel Defense fixed front and rear sight combo consist of?

A: The set consists of two sights: the A1.5 Fixed Rear Sight and the Rail-Mounted Fixed Front Sight. Both attach with Daniel Defense’s patented Rock & Lock attachment technology, and the pair weighs 2.8 ounces. Buying the combination is how you know front and rear were designed to index together.

Q: Can I run these fixed sights with a red dot on the same rifle?

A: Yes, and that is a large part of the point. The A1.5 Fixed Rear Sight is built to serve as a back-up for shooters using reflex optics, so the set is designed to live on the rail alongside a red dot. Whether your optic co-witnesses depends on its height over bore.

Q: Will a weapon light still fit with the rail-mounted front sight installed?

A: Yes. Daniel Defense designed the Rail Mounted Fixed Front Sight to be unobtrusive and snag-free and to allow compact weapon-lights forward of the sight, naming the X300 and TLR-1 as examples. That is the practical difference between this front sight and a taller A2-style base.

Q: What is Rock & Lock attachment technology?

A: Rock & Lock is Daniel Defense’s patented attachment method, used on both sights in this set and across the brand’s rail-mounted accessories. For torque figures, fastener sizes and the correct installation sequence for your particular rail, call 817-393-4000 rather than working from a generic instruction sheet.

Q: What is this sight set made from and how is it finished?

A: The set is machined from aircraft grade 6061-T6 aluminium and finished in military specification Type III hard coat anodising. This part number, 19-088-09116-011, is the Mil Spec Brown colour variant rather than black. If colour matching matters, call us and we will describe the finish in hand.

Q: How much do these sights weigh, and does that matter on a lightweight build?

A: The set weighs 2.8 ounces for both sights. On a build where you are counting ounces in the handguard and barrel, that is a small tax for a mechanical backup that still works with a dead optic or a fogged lens. Fixed sights also cannot be folded down by accident.

Additional information