Primary Arms 34mm PLx Cantilever Mount, 20 MOA

• 20 MOA cant: Built-in forward inclination preserves more of a scope’s internal elevation travel, which is especially useful on rifles set up for longer distances.
• 34 mm cantilever format: The mount is sized for 34 mm scope tubes and pushes the optic forward for better eye relief placement on AR-style rifles and other modern sporting platforms.
• Lightweight aluminium body: Aluminium construction keeps weight to 167.00 g, helping maintain a balanced rifle without giving up the rigidity expected from a one-piece mount.
• One-piece fixed design: A complete cantilever mount keeps ring alignment consistent and simplifies installation compared with separate rings, which helps support repeatable scope positioning.
• PLx-series positioning: As part of the Primary Arms Mounts range, this model is aimed at serious optic setups where secure attachment, practical geometry, and clean integration matter as much as the scope itself.

About the Primary Arms Mounts Series

Primary Arms Mounts covers a broad range of mounting solutions for modern optics, from scope rings and risers to dedicated mounts for red dots, magnifiers, and riflescopes. Within the lineup, the series is designed to support different tube sizes and optic formats, including 1-inch, 30 mm, and 34 mm configurations, so shooters can match the mount to both the optic and the rifle rather than forcing a compromise. The range also includes products built around the M1913 Picatinny interface, which keeps compatibility straightforward across many sporting and tactical rifles.

The series stands out for its practical variety. Primary Arms offers cantilever scope mounts for proper eye relief on AR-pattern rifles, separate rings for more traditional setups, and magnifier mounts with flip-to-side operation for carbines that combine a red dot with added reach. The catalog also includes risers for compact optics such as micro red dots and MicroPrism models. Across the family, the design approach is functional rather than decorative: secure clamping, sensible geometry, and configurations that fit how the optic will actually be used in the field or on the range.

About the Primary Arms 34mm PLx Cantilever Mount, 20 MOA

The Primary Arms 34mm PLx Cantilever Mount, 20 MOA is built for riflescope setups that need both a forward optic position and additional elevation bias for distance work. Its 34 mm ring size suits larger-tube optics often chosen for precision shooting and extended-range hunting optics, while the cantilever layout helps place the scope farther forward on rifles with limited receiver rail space. That makes it especially useful on AR-platform rifles, where correct eye relief often depends as much on mount geometry as on the scope itself.

The defining feature is the 20 MOA inclination. By angling the optic slightly downward relative to the bore, the mount helps preserve more of the scope’s upward adjustment range. In practice, that gives the shooter more usable elevation for dialing at longer distances without immediately pushing the optic toward the top of its internal travel. For rifles built around heavier calibers, longer barrels, or precision-oriented ammunition, that extra adjustment headroom can be a meaningful advantage.

The one-piece aluminium construction keeps the mount to 167.00 g, which is light enough to avoid making the rifle feel top-heavy while still providing the stability expected from a fixed tactical mount. At 110.00 mm in length, it offers a compact footprint that supports a clean, efficient setup. The design omits extras such as an integrated bubble level, keeping the layout simple and focused on secure scope mounting for shooters who want a straightforward, durable 34 mm cantilever solution with built-in long-range bias.

About Primary Arms

Primary Arms Optics was founded in 2008 and is headquartered in Houston, Texas. The company is known for developing optics and related equipment for practical shooting applications, with a catalog that includes rifle scopes, prism scopes, red dot sights, mounts, and accessories. One of its most recognizable in-house technologies is the ACSS reticle system, developed to provide more information in the sight picture for faster holds and more intuitive aiming.

Beyond reticle design, Primary Arms has also introduced features such as AutoLive motion-sensing illumination in its optics lineup. Its product families include PLx, GLx, SLx, and CLx, covering different performance tiers and use cases. In addition to designing and manufacturing optics, the company also operates e-commerce, wholesale distribution, and government sales divisions, giving it a broad presence in the shooting optics market.

Main Features

• Manufacturer: Primary Arms
• Mount series: Primary Arms Mounts
• Made in: China
• Mount type: Cantilever mount
• Tube diameter: 34
• Inclination: 20 MOA
• Extension (KR): 0 MOA
• Offset angle: 0°
• Bubble level: No
• Material: Aluminium
• Length: 110.00 mm
• Weight: 167.00 g

Warranty

Primary Arms covers this mount with a 2-year warranty, providing defined manufacturer support for defects in materials and workmanship during the stated period.