XS Sights has added a new line of pre-drilled fiber optic front sights for Smith & Wesson J-, K-, and L-Frame revolvers, the company announced June 30. Soldier Systems Daily and the NRA's Shooting Sports USA both picked up the release on July 1. The steel sights are manufactured in the United States and use the factory roll pin hole already machined into S&W frames, letting shooters complete the swap without drilling, tapping, or visiting a gunsmith.

The front sight is built around XS's proprietary US-sourced fiber optic rod set at a forward-angled profile. The angled geometry channels ambient light down the axis of the rod more aggressively than a horizontal mount, translating to a brighter aiming dot across a wider range of lighting conditions. The kit ships with a green fiber optic insert already installed, plus an interchangeable orange rod for shooters who prefer contrast against lighter target backgrounds. The package also includes an adjustable rear sight, giving revolver owners a fully tunable sight picture in both elevation and windage — a combination that is less common in the revolver aftermarket than in the pistol space.

Installation follows a simple procedure: drive out the factory roll pin, pull the original front sight, drop the XS unit into place, and drive the pin back with the included threadlocker securing the assembly. XS emphasizes the no-drill, no-tap nature of the installation as a key selling point. In a segment where some aftermarket revolver sight upgrades require precise milling or professional installation, the pre-drilled format meaningfully lowers the barrier to entry.

The J-, K-, and L-Frame designation covers a wide swath of the S&W double-action catalog. J-Frames are the compact snub-noses — the 442, 642, 340PD, and similar concealed carry stalwarts. K-Frames are the mid-size service revolvers that defined American law enforcement for decades, including the Model 10 and Model 19. L-Frames, represented by the 586 and 686, are the full-size .357 Magnum competition and duty revolvers. That breadth of coverage makes the new XS kit relevant to a large installed base of S&W wheelgun owners.

XS Sights has an established catalog of tritium and night-sight-equipped revolver fronts for S&W frames, so this fiber optic release is an extension of an existing product family rather than a new direction for the company. The fiber optic option fills a distinct niche: shooters who prioritize maximum daylight brightness over low-light tritium performance. Competition shooters under range lights and recreational shooters in well-lit conditions often find a high-brightness fiber optic more useful than the cooler glow of a tritium vial.

Street price for the kit is $118.89. For the revolver market — where quality aftermarket sights have historically required either expensive custom work or searching for limited-run specialty parts — that puts the XS offering in a competitive position against the handful of alternatives currently available. Full compatibility details for specific model numbers within each frame category are available through XS Sights directly at xssights.com.