XS Sights Launches R3D 2.0 Night Sights for Glock A-Cut Slides
XS Sights has introduced the R3D 2.0 night sights, designed specifically for Glock 19 pistol slides equipped with the Aimpoint A-Cut optics mount footprint. This innovation follows the 2025 launch of the Aimpoint A-Cut system and its built-in COA red-dot sight.
The R3D 2.0 set includes a rear sight with two smaller tritium vials and a wide, serrated square rear notch. Its design is slightly longer than the factory sight to minimize dirt and debris collection. The sides are flush with the Glock 19 slide, reducing snag potential and providing a cleaner look. The rear sight also features a novel mounting system, doing away with typical screws and relying on two integrated into the unit.
The front sight comes with a large tritium vial surrounded by a wide, photoluminescent red glow dot. The Aimpoint A-Cut footprint, with its recessed wedge and chamfered ridge, allows the COA sight to lock in like a ski boot. Glock 19 is the only company producing A-Cut and COA compatible models, which come with plain black metallic sights.
XS Sights' R3D 2.0 night sights offer a practical solution for Glock 19 users with the Aimpoint A-Cut optics mount. Their innovative design minimizes debris collection, reduces snag potential, and provides a clean, efficient sighting system.
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