EasyPress is XS Sights' installation design for the R3D 2.0 that simplifies the press-fit process. Traditional night sights are pressed into the slide's dovetail cut and can require a sight pusher tool, a vice, or significant force to seat fully. EasyPress is engineered to reduce the effort and specialized tooling required for installation and adjustment. The specific design details are proprietary to XS Sights, but the practical benefit is a sight set that can be installed and adjusted with less difficulty than a conventional press-fit design — useful for gunsmiths, armorer courses, and shooters who perform their own sight changes.

The black PVC rings surround each tritium vial and create a visible dark border between the glowing tritium capsule and the steel body of the sight. This contrast ring makes the tritium point easier to identify quickly in low-light and transitional light environments, because the eye has a defined edge to lock onto rather than a tritium capsule that blends into the surrounding metal. In complete darkness the effect is less critical because tritium glows regardless, but in partial light — the most common defensive lighting condition — the black PVC ring helps the eye find the vial faster. This is a similar principle to the white outlines used on conventional night sights, but using a contrasting dark ring instead of a light-colored surround.

XS Sights backs the R3D 2.0 tritium inserts with a 12-year warranty. Tritium is a radioactive isotope with a half-life of approximately 12.3 years, meaning the inserts gradually dim over time from radioactive decay rather than failure. The 12-year warranty period aligns with this half-life, covering the full window during which the tritium will be at or above half its original brightness. Contact XS Sights directly for the specific terms of warranty service and replacement procedures. The photoluminescent Glow Dot is not subject to tritium decay and continues to function at full effectiveness throughout and beyond the warranty period.

The R3D 2.0's front height of 0.385 inches and rear height of 0.455 inches indicate a tall sight profile designed to clear suppressor bodies or optic housings. Whether these sights co-witness with a specific optic depends on the optic's window height above the slide, which varies by model and mounting plate. XS Sights specifically recommends measuring to confirm that your sights, optic mounting plate, and optic are compatible before purchase. For confirmed optic co-witness specifications on a specific Glock generation and optic model, contact XS Sights or your optic manufacturer for dimensional data.

The R3D 2.0 introduces several material and engineering upgrades over the original R3D. The most significant is the black nitride coating, which replaces standard steel with a harder, more corrosion-resistant surface. The R3D 2.0 also adds black PVC rings around the tritium vials for improved contrast and acquisition, incorporates EasyPress installation technology for simpler installation and adjustment, and provides an explicit 12-year tritium warranty. The rear sight design changes from the original R3D's blacked-out 2-dot dimmer-rear configuration to a wide notch with serrations and an anti-reflective lens. Both share the Glow Dot + tritium front sight technology and traditional notch-and-post sight picture.

The Glow Dot is XS Sights' proprietary photoluminescent front sight element. Photoluminescent materials absorb energy from ambient and UV light and re-emit it as visible light in low-light conditions. The R3D 2.0 front sight charges passively during normal carry and glows green when the lights go out, without batteries or activation. The Glow Dot works alongside the tritium insert: tritium provides constant always-on glow regardless of prior light exposure, while the Glow Dot adds a brighter layer that peaks after ambient light exposure and gradually fades until recharged. Both sources operate simultaneously in low-light, providing two independent visibility mechanisms in a single front sight element.