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THE WORLD´S #1 SOURCE FOR Night Sights | Tritium Night Sights | Glock Gun Sights | Brightest Handgun Sight



DEARBORN, MI. (April 8, 2021) – Night Fision, a leader in advanced tritium insertion solutions, is pleased to announce the addition of Glock 43X MOS sight models to the Costa Ludus and Optics Ready Stealth sight products.

Like all of Night Fision’s sights, both the Costa Ludus and the Optics Ready Stealth 43X MOS sights feature tritium vials that carry domed lenses optically engineered for superior visibility. Their individual, purpose-driven designs are where these two product lines define themselves.

Chris Costa designed the Costa Ludus sights to be his ultimate extreme-low co-witness back up sights. They are serrated on both the front and rear face for low glare. The rear sight carries the tritium bar for unmistakable sight alignment with the front sight dot. The 43X MOS sights feature a sight blade height designed specifically for the 43X MOS sight radius. Available in Yellow, Orange, and White front sight rings, these continue the same extreme low-profile co-witness as the larger model sights.

Details matter, and the Costa Ludus sights feature all the details that are paramount for quick sight acquisition, regardless of the environment,” said Chris Costa, President & Director of Training for Costa Ludus.

In addition to the Costa Ludas Glock 43X MOS sights, Night Fision’s Optics Ready Stealth sights also have a line extension for the Glock 43X MOS. The Optics Ready Stealth sights offer the consumer several variations to select from. Yellow, Orange, and Black ring front sights can be combined with Blank, or Black ring rear sights, giving a greater number of possible combinations for the 43X MOS owner to choose from. Regardless of the combination, all variants feature carry serrated faces and occupy a low-profile co-witness.

As with all Night Fision sights, front rings are made of ballistic polymer that is guaranteed to not chip, crack, fade or peel under even the most adverse conditions. Night Fision night sights are CNC machined out of high-quality steel and the lenses are constructed from the same materials used for bulletproof glass. Night Fision packs more tritium gas into every sight, ensuring their sights are the brightest available.

For more information on these products, or other Night Fision offerings, visit


About Night Fision

Based in Metro Detroit, Night Fision brings a rich background of automotive engineering, lean manufacturing and expertise in tritium illumination to the firearms industry. Its sister company, Cammenga, is the official manufacturer of the U.S. Army’s Tritium Lensatic Compass and provides them to national militaries around the world. As a result, Night Fision utilizes over 25 years of tritium insertion and military-grade manufacturing expertise to provide the brightest tritium night sights on the market today. The company’s proprietary Perfect Dot®, combined with CNC precision machined bodies and a higher concentration of tritium, allows for the creation of the highest quality pistol night sights with enhanced brightness, all Built in the USA with Swiss Tritium. For more information about Night Fision, please visit

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  1. Do you have back up sights for:

    G43x mos
    Holosun 507k x2 with plate

    Preferably colored front and blacked rear

  2. We absolutely do, head to the Glock Optics Ready Stealth page and select the 43x from the Model drop menu, then select the smaller of the two blade heights. We list all our optics + sights recommendations in the description further down on the page.

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