ADE RD3-019 Stingray Red Dot Sight with Optic Mounting Plate for Ruger 57 / Ruger 5.7

Product Description

Upgrade your Ruger 57 pistol with the ADE Advanced Optics RD3-019 Stingray Red Dot Sight and Optic Mounting Plate Combo. This package includes the ultra-compact ADE Stingray red dot sight, a standard mounting base, and a dedicated optic adapter plate designed specifically for the Ruger 57 / Ruger 5.7 pistol.

Featuring an RMR-compatible footprint, automatic brightness adjustment, a built-in backup rear sight, and durable construction, the ADE Stingray delivers a compact, lightweight optic solution for your handgun.

Key Features

COMPLETE RED DOT & RUGER 57 MOUNTING PLATE COMBO

Includes the ADE RD3-019 Stingray red dot sight, a standard mounting base, and a dedicated optic mounting plate for the Ruger 57 / Ruger 5.7 pistol. The included adapter plate is designed specifically for the Ruger 57 and is not compatible with other pistol models. Ruger 57 and Ruger 5.7 refer to the same pistol.

ULTRA-COMPACT RMR FOOTPRINT DESIGN

The ADE Stingray is one of ADE's most compact and lightweight RMR-footprint red dot sights. Its overall length is approximately 15–20% shorter than many conventional red dot sights, offering a streamlined profile without unnecessary bulk.

The Stingray uses the popular Trijicon RMR/SRO mounting footprint and is compatible with mounting interfaces designed for Trijicon RMR Type 1 and Type 2, SRO, and Holosun 407C/507C/508T optics.

SENSOR-ACTIVATED AUTOMATIC BRIGHTNESS

The ADE Stingray features an always-on, sensor-activated illumination system that automatically adjusts reticle brightness based on surrounding lighting conditions. The dot becomes brighter in well-lit environments and dims in lower-light conditions, eliminating the need for manual brightness adjustments.

Powered by a single CR2032 3V battery, its energy-efficient design minimizes power consumption for extended battery life.

INTEGRATED BACKUP REAR SIGHT

The Stingray incorporates a curved rear sight profile with two white aiming dots, providing a convenient backup iron sight feature.

Its ultra-short housing may also provide additional space for co-witnessing with factory iron sights on certain optics-ready pistols. On compatible pistols where the optic mounting adapter replaces the factory rear sight, the integrated white dots can serve as a replacement rear sight.

DURABLE, RECOIL-RESISTANT CONSTRUCTION

Engineered to withstand handgun recoil and regular shooting conditions, the ADE Stingray is designed to maintain a consistent zero and reliable optic alignment during normal use.

Product Specifications

• Brand: ADE Advanced Optics

• Model: RD3-019 Stingray

• Reticle: Red Dot

• Mounting Footprint: Trijicon RMR / SRO Compatible

• Brightness Control: Automatic, Sensor-Activated

• Power Source: 1 × CR2032 3V Battery

• Backup Sight: Integrated Rear Sight with Two White Dots

• Included Pistol Adapter: Ruger 57 / Ruger 5.7 Only

Package Includes

• 1 × ADE RD3-019 Stingray Red Dot Sight

• 1 × Standard Mounting Base

• 1 × Ruger 57 / Ruger 5.7 Optic Mounting Plate

IMPORTANT COMPATIBILITY NOTICE: The included Ruger 57 optic mounting plate is designed exclusively for the Ruger 57 / Ruger 5.7 pistol. It does not fit other Ruger models or other handgun brands. Although the ADE Stingray red dot uses an RMR-compatible mounting footprint, the included pistol adapter plate is Ruger 57-specific.