The Primary Arms PLx 1-8×24 is a Low Power Variable Optic (LPVO) riflescope with a first focal plane (FFP), positioned as the high-end optics of the American brand Primary Arms. Designed to compete with premium market benchmarks such as Vortex Razor HD or Nightforce ATACR, it is aimed at demanding tactical shooters looking for a compact LPVO at the top of its class.
History and Development of the Primary Arms PLx 1-8x
Primary Arms, founded in 2007 in Houston, has long been identified with the entry-level segment thanks to its SLx line. With the creation of the PLx (Premium Long Range) range in the late 2010s, the company entered the premium lens market, relying on the expertise of Japanese manufacturers and the ACSS reticles developed by Dimitri Mikroulis. The PLx 1-8×24 was the brand’s first premium FFP LPVO, and it later evolved into the shorter and lighter PLxC (Compact) version.
The development of the PLx is part of a general trend in the American tactical market to favor 1-8x or 1-10x lenses in the foreground, capable of covering both close-quarters combat and shooting at 800 meters. Primary Arms has opted for high-end Japanese ED lenses and the introduction of RDB (Red Dot Bright®) diffractive illumination technology, which achieves brightness comparable to a real red dot in direct sunlight while preserving battery life.
Technical Specifications
| Feature | Specification |
|---|---|
| Official designation | Primary Arms PLx / PLxC 1-8×24 |
| Country of Origin | USA (Design) / Japan (Manufacture) |
| Manufacturer | Primary Arms LLC (Houston, Texas) |
| Premium LPVO (Low Power Variable Optic) | optical type |
| 1x – 8x | magnification |
| Lens diameter | 24 mm |
| Tube diameter | 30 mm |
| First Focal Plane (FFP) – SFP option on PLxC | |
| ACSS Raptor M8 / ACSS Griffin MIL M8 / ACSS Nova | Reticle |
| RDB (Red Dot Bright®) LED illumination, CR2032 battery | |
| Field of View | 121 ft at 100 yd at 1x |
| Lenses | Japanese ED (Extra-low Dispersion) Lenses |
| Overall length | 9.28 inches (≈ 236 mm) Compact version |
| Weight | 16.95 oz (≈,480 g) Compact Version |
| Lockable Tactical Turrets, Hooded | |
| Waterproofing | Tropicalized ruggedized housing |
Operation and Technical Particularities
The PLx 1-8×24 sits on a one-piece aircraft-grade aluminum tube, equipped with multi-layered Japanese ED glass that reduces chromatic aberrations and improves color fidelity. The 1-8x variable magnification is designed to deliver true 1x (“daylight bright”) at close engagement, allowing for two-eye open shooting without noticeable parallax.
The main innovation of the PLx is its diffractive RDB illumination system, which is much more energy efficient than traditional etching and filling illuminations. The eleven intensity levels include a “daylight bright” illumination that effectively turns the bezel into a red dot at 1x. The front-plane focal plane construction ensures that ballistic graduations (bullet drop, wind, moving target leads) remain valid at all magnifications, which is a decisive advantage for long-range shooting.
Tactical turrets are lockable and captured, with crisp clicks and excellent repeatability. The PLxC Compact version has been designed to reduce the overall length and weight of the scope, making it particularly suitable for close defense rifles and PDW configurations.
Variants and Versions
The PLx 1-8×24 family is available in several configurations. The original PLx 1-8×24 FFP offers the standard version with a focal foreground. The PLxC 1-8×24 FFP is the shorter, lighter Compact version that is ideal for the AR-15 carbine. The PLxC 1-8×24 SFP offers a Compact version with a second focal plane for those who prefer an invariable reticle reading. Available reticles include the ACSS Raptor M8 in yards or meters for 5.56/.308, the universal milliradian-based ACSS Griffin MIL M8 , and the ACSS Nova in Fiber Wire illumination.
Users and Armed Forces
The PLx 1-8×24 mainly targets competitive sport shooters (Tactical Games, NRL, 2-Gun, 3-Gun), long-range fighters and American private contractors. It is not adopted as an official endowment approach by the U.S. Armed Forces, which favor the Trijicon VCOG, Sig Tango6T or Vortex 1-10x platforms over their recent contracts (NGSW, SCO). However, it is used on an individual basis by operators with the freedom to configure their weapons and by several SWAT units and private shooting schools. Its distribution in the American civilian tactical market is very important, and it is gaining popularity in Europe among sport shooters equipped with AR-15 rifles and other modern semi-automatics.
Civil Possession in Switzerland
In Switzerland, the Primary Arms PLx 1-8×24 is freely available from specialist gunsmiths and tactical optics dealers. As a firearm accessory, its acquisition is not subject to any specific licence within the meaning of the Federal Weapons Act (Arms Act). On the other hand, the support weapon on which it is mounted must be legally owned by the user. For AR-15 type semi-automatic rifles, classified as prohibited weapons since the 2019 revision of the LArm, the shooter must hold an exceptional cantonal permit within the meaning of Art. 28c LArm, accompanied by proof of regular shooting in a club affiliated to an umbrella association. On a bolt-action hunting rifle or on an authorized sport rifle, no specific procedures beyond the standard weapons acquisition permit are required.
Conclusion
The Primary Arms PLx 1-8×24 marks the successful entry of the Texan brand into the premium LPVO segment. By combining Japanese ED lenses, ultra-bright RDB illumination, a first-focal-plane ACSS reticle and a compact construction, it offers a credible alternative to European and American optics sold at significantly higher prices. It quickly established itself as a benchmark in the civilian tactical market and remains one of the most versatile choices for shooters wanting a premium 1-8x LPVO suitable for both close combat and accurate long-range shooting.
