The Daniel Defense A1.5 Fixed Rear Sight is a no-nonsense backup iron sight built for shooters running optics on modern tactical rifles. Whether you're setting up an AR-15 patrol rifle, competition gun, or precision build, this single-piece fixed rear sight gives you a reliable aiming point if your primary optic fails or gets damaged—the kind of insurance that matters downrange. Daniel Defense engineered it to coexist peacefully with your charging handle, so you won't have fit or access issues on M4-pattern uppers.

Machined from 6061 aircraft-grade aluminum and finished in military-spec hard coat anodize, the A1.5 is built light without sacrificing durability. The streamlined design sheds unnecessary weight while the through-cut profile keeps it from becoming a snag point or cheek rest obstruction. Installation is straightforward: the one-piece design mounts to any mil-spec flattop upper receiver with a slotted fastener that threads into a self-locking steel insert, so you can get it sorted with basic tools and a couple of minutes.

The sight features secure windage adjustment to dial in your zero at distance. If you're running a modern optic setup and want a backup iron sight that stays out of the way but delivers when you need it, the Daniel Defense A1.5 is the kind of proven, no-fuss component that belongs on a duty, hunting, or competition rifle.

Key Features

• Single-piece design for simplified installation on mil-spec flattop receivers
• Compact, streamlined profile that doesn't interfere with charging handle operation
• Secure windage adjustment for accurate zero
• Through-cut design reduces weight without compromising strength
• 6061 aircraft-grade aluminum construction with military-spec hard coat anodize finish
• Self-locking steel thread insert for reliable, repeatable mounting

Specifications

Brand	Daniel Defense
Product Type	Fixed Rear Sight
Material	6061 Aircraft-Grade Aluminum
Finish	Military Specification Hard Coat Anodize
Design	One-Piece Fixed
Mounting	Mil-Spec Flattop Upper Receiver
Fastener Type	Slotted with Self-Locking Steel Thread Insert
Features	Windage Adjustment, Through-Cut Weight Savings

Frequently Asked Questions

What rifles is the Daniel Defense A1.5 compatible with?

The A1.5 mounts to any military-specification flattop upper receiver, which includes AR-15s, M4-pattern rifles, and most modern tactical carbines. It won't interfere with M4-type charging handles.

Is this a backup sight or a primary sight?

The A1.5 is designed as a backup iron sight for shooters who already have a primary optic mounted. It provides a reliable aiming point if your optic fails or is damaged in the field.

How difficult is installation?

Installation is straightforward. The one-piece design secures to your upper receiver with a slotted fastener that threads into a self-locking steel insert. Basic tools and a few minutes are all you need.

Does the sight adjust for elevation?

The A1.5 features windage adjustment to dial in your zero. For elevation changes, you would adjust your load or hold over at distance.