

The Primary Arms PLX HTX-1 is a truly revolutionary enclosed-emitter reflex sight, proudly made in Houston, Texas, without compromise. Built to the highest standards of quality and performance, it is part of Primary Arms' top-tier PLx optics line - engineered to meet the exacting demands of professional use with impeccable glass clarity and state-of-the-art construction. Its patent-pending Modular Chassis System (MCS) is compatible with almost all existing optics-cut pistols and achieves the lowest possible centerline, enabling co-witnessing with standard-height iron sights right out of the box. The HTX-1 includes RMR Type A, RMR Type B (raised screw bosses), and GLOCK MOS mounting interfaces so no additional hardware purchases are needed. Autolive motion-sensing technology automatically activates the reticle upon movement, preserving the approximately 20,000-hour CR2032 battery life, while the side-loading battery tray allows fast changes without removing the optic from the pistol.
Product Highlights
- Made in the USA: Proudly crafted in Houston, Texas, with USA-made screws and a durable 7075-T6 aluminum housing finished in Type II hard coat anodize for rugged, long-lasting performance.
- Patent-Pending Modular Chassis System (MCS): Versatile mounting system compatible with GLOCK MOS, Trijicon RMR Type A and Type B (raised ZEV post) footprints - three interfaces included in the box.
- ACSS Vulcan Dot Reticle with Multi-Reticle Select: Features a 4 MOA center dot paired with a 240 MOA segmented outer circle for rapid target acquisition, with the ability to switch between the full ACSS Vulcan reticle and a clean 4 MOA dot.
- Standard-Height Co-Witness: Achieves the lowest possible mount height to co-witness seamlessly with GLOCK MOS standard-height iron sights - no taller sights required.
- Autolive Motion Sensing and Side Battery Tray: Motion-activated illumination conserves battery life (approx. 20,000 hours on a CR2032), and the side-mounted battery compartment enables quick changes without dismounting the optic.
Specs
- Brand: Primary Arms
- Manufacturer Part Number (MPN): PA-PLX-HTX-1-ACSS
- UPC: 810178480036
- Reticle: ACSS Vulcan Dot with multi-reticle select (4 MOA dot or ACSS Vulcan)
- Housing Material: 7075-T6 aluminum with Type II hard coat anodized finish (black)
- Aperture: 19.5 x 15.2 mm
- Length: 1.78 in.
- Width: 1.56 in.
- Height: 1.05 in.
- Weight: 1.74 oz.
- Battery: CR2032 (side-mounted tray)
- Battery Life: Approx. 20,000 hours
- Illumination Settings: 12 settings (including 3 Night Vision)
- Mounting Compatibility: GLOCK MOS, Trijicon RMR Type A and Type B; SIG M17/M18 plate available for MIL/LE use
- Country of Manufacture: USA (Houston, Texas)
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