Primary Arms (PA) has a vibrant optics line with a good reputation. They’re coming on strong for 2025 with a bunch of new releases starting with the PLx HTX-1 red dot sight. Not only does it have some great specs, but its also PA’s first American made optic, something that isn’t so common in the optics field today.

The PLx HTX-1

The PLx HTX-1 is an enclosed-emitter reflex sight with a patent pending Modular Chassis System (MCS). The new chassis is compatible with almost all existing optics cut pistols according to PA. It offers the lowest possible centerline and will co-witness with standard height iron sights. It comes an RMR Type A, RMR Type B (raised screw bosses), and GLOCK MOS mounting interface, giving you a wide variety of mounting options right out of the box. There’s also a SIG M17/M18 plate that’s only available for the military and law enforcement for some reason.

The sight is constructed from 7075-T6 aluminum with a black Type II hard coat anodized finish. It uses a 19.5 x 15.2mm narrow band glass reflex doublet with wide band A.R. coating as well as fully multi-coated lenses. The HTX-1 is both waterproof and shockproof. The sight is 1.78 inches long, 1.05 inches high and weighs only 1.74 ounces.

The HTX-1 has a side mounted battery compartment and runs on a single CR2032 3V Lithium coin cell. Battery life is 10,001 to 25,000 hours depending on setting. This is enhanced by Primary Arms Autolive motion sensing technology. It uses a 4 MOA red dot with 11 total brightness settings including 3 night vision settings. Brightness adjustment is through side mounted push buttons.

The PLx HTX-1 is the result of a three year program by Primary Arms to produce a made in USA optic. They’re backed by PA’s lifetime warranty and have an MSRP of $649.99.

PLx HTX-1 Specs

Battery Life: 10,001 – 25,000 Hours
Battery Type: CR2032 3V Lithium Coin
Brightness: 11 Settings
Click Value: 1 MOA
Color: Black
Emitter Type: Closed Emitter
Finish: Hardcoat Anodized
Material: Aluminum – 7075-T6
Mount Compatibility: GLOCK MOS, Trijicon RMR
Night Vision Compatible: Night Vision Compatible
Optic Series: PLx
Reticle: 4 MOA Dot
Reticle Color: Red
Weight: 1.74 oz.
Length: 1.78 in.
Width: 1.56 in.
Height: 1.05 in.
Warranty: Lifetime
Weight: 1.74 oz.
MSRP: $649.99