Primary Arms 30mm SLx Cantilever Mount

• Cantilever layout: pushes a 30 mm riflescope forward to give more mounting flexibility on AR-style rifles and other platforms with limited receiver rail space.
• 1.5-inch class mounting height: the 38.00 mm H height places the optic at a practical level for a natural head position, helping the shooter settle behind the scope faster.
• 0 MOA / 0° alignment: keeps the optic level and neutral, making it a straightforward choice for general-purpose carbines and standard zeroing setups without added cant.
• Aluminium construction: combines low weight with the rigidity needed for a stable optic interface, so the mount adds less bulk while still supporting repeatable scope positioning.
• 30 mm compatibility: fits a wide range of popular tactical optics and hunting optics built on 30 mm tubes, making it a versatile option for common LPVO and mid-power scope setups.

About the Primary Arms Mounts Series

Primary Arms Mounts covers a broad range of optic-mounting solutions built to match the company’s scope, magnifier, and red-dot lineup. The series includes cantilever mounts, scope rings, and risers, giving shooters options for different rifle layouts, optic footprints, and preferred sight heights. Within the catalog, Primary Arms offers mounts in 1-inch, 30 mm, and 34 mm formats, alongside designs for M1913 Picatinny rails and other common interfaces.

In the lineup, the mount family spans practical entry-level solutions through more specialized configurations, including CLx, SLx, GLx, and PLx variants. That structure mirrors the wider Primary Arms optics range and helps users pair a mount with the intended role of the rifle, whether that means a simple fixed setup for a carbine or a more refined mounting solution for a premium optic. The series is defined by straightforward mechanical design, compatibility with common modern sporting rifles, and a choice of release styles such as cross-bolt and thumb-screw systems. Across the range, the emphasis stays on secure optic placement, sensible geometry, and compatibility with the kinds of rifles and sighting systems most often used for tactical and sporting applications.

About the Primary Arms 30mm SLx Cantilever Mount

The Primary Arms 30mm SLx Cantilever Mount is a fixed mount built for shooters who need a simple, stable way to position a 30 mm riflescope on a rifle with a Picatinny-style top rail. Its cantilever format is especially useful on AR-platform rifles, where receiver space is limited and proper eye relief often requires the scope to sit slightly farther forward than conventional rings allow. By moving the optic ahead without adding unnecessary complexity, the mount helps create a more natural shooting position and a cleaner fit with LPVOs and other compact to mid-size scopes.

The mount uses a 0 MOA inclination, making it well suited to general-purpose zeroing and everyday carbine use where a neutral base is the most practical choice. With an H height of 38.00 mm and BH height of 23.00 mm, it places the optic at a height that supports fast sight acquisition while maintaining comfortable alignment behind the eyepiece. That balance is valuable for rifles used across mixed distances, where the shooter may move between supported fire, improvised positions, and rapid target transitions.

Its aluminium body keeps weight to 165.00 g, so it adds less mass than heavier steel alternatives while still providing the rigidity expected from a dedicated scope mount. The design stays deliberately straightforward: no built-in bubble level, no added cant, and no offset angle. That makes this SLx mount a practical choice for users who want dependable scope placement, low added weight, and uncomplicated installation for a 30 mm optic.

About Primary Arms

Primary Arms Optics was founded in 2008 and is headquartered in Houston, Texas. The company focuses on shooting optics and related equipment, with a catalog that includes rifle scopes, prism scopes, red dot sights, mounts, and accessories. Beyond product design and manufacturing, Primary Arms also operates e-commerce, wholesale distribution, and government sales divisions, reflecting a broad role in the modern sporting optics market.

Within the optics category, Primary Arms is especially known for its structured product families, including PLx, GLx, SLx, and CLx, and for proprietary features such as the ACSS reticle system and AutoLive motion-sensing illumination technology. Those developments have helped establish the brand’s reputation for practical, application-focused designs aimed at shooters who want clear feature sets and purpose-built configurations rather than unnecessary complexity.

Main Features

• Manufacturer: Primary Arms
• Mount series: Primary Arms Mounts
• Made in: China
• BH height: 23.00 mm
• H height: 38.00 mm
• Extension: 0 MOA
• Inclination: 0 MOA
• Scope / Sight type: 30 mm
• Tube diameter: 30
• Offset angle: 0°
• Bubble level: No
• Material: Aluminium
• Weight: 165.00 g

Warranty

Primary Arms covers this mount with a 2-year warranty.