Primary Arms SLx Cantilever 34mm Scope Mount

• 34 mm cantilever format: Positions a 34 mm riflescope farther forward, giving AR-style and other modern rifle setups the eye-relief placement they need without resorting to separate rings.
• 1.5 in. optical centerline: Places the optic at a practical height for a natural head position on flat-top rifles, helping speed up target acquisition and maintain a consistent cheek weld.
• Three-bolt clamping system: Spreads recoil forces across more contact points for a more secure hold, which helps the scope stay in place through repeated firing and hard field use.
• 6061 aluminum body with steel hardware: Keeps weight down while retaining the strength needed for a dependable scope mount that can handle regular range, hunting, and tactical use.
• 0 MOA inclination: Maintains a neutral mounting angle, making it a straightforward choice for general-purpose carbines and rifles where extra elevation cant is not required.

About the Primary Arms Mounts Series

Primary Arms Mounts covers a broad range of optic-mounting solutions built to support everything from riflescopes and magnifiers to red-dot optics and risers. Within the lineup, the series includes cantilever mounts, separate scope rings, and specialized interfaces for common modern platforms, with M1913 Picatinny compatibility appearing across the catalog. That breadth makes the series relevant to shooters assembling lightweight sporting rifles, practical carbines, and more duty-oriented tactical optics setups.

The family also spans multiple fitments, including 1-inch, 30 mm, and 34 mm scope tubes, and it is offered across Primary Arms' own tiered optic ecosystem, including SLx, GLx, and PLx variants. In practical terms, that gives users a way to match mount design and budget level to the optic they are running. Across the series, the design philosophy centers on secure attachment, straightforward installation, and geometry that suits modern rifle layouts, especially where forward optic placement and consistent eye relief matter.

About the Primary Arms SLx Cantilever 34mm Scope Mount

The Primary Arms SLx Cantilever 34mm Scope Mount is built for shooters using a 34 mm tube riflescope on a rifle that benefits from forward optic placement. Its cantilever layout moves the scope ahead of the receiver, which is especially useful on AR-pattern rifles and similar platforms where proper eye relief can be difficult to achieve with conventional ring placement. The result is a cleaner shooting position and a more natural head alignment behind the optic.

This model uses a 1.5 in. optical centerline, a height widely suited to flat-top rifle configurations because it balances sight picture comfort with practical stock weld. The 0 MOA inclination keeps the mount neutral, making it well suited to general-purpose rifles, LPVO setups, and precision-capable carbines that do not need a built-in elevation bias. For shooters who want a simple mounting solution without changing the optic's internal adjustment balance, that is a useful advantage.

Construction is focused on keeping the mount light without making it feel insubstantial. The body is made from 6061 aluminum, while the hardware is steel, combining reduced carry weight with the durability expected from a hard-use scope mount. Primary Arms also uses a three-bolt design with dual machined recoil lugs and three cross-bolt lugs to distribute recoil forces and help the optic remain stable under repeated firing and impact. At 165.00 g, it stays compact enough for practical rifle builds where unnecessary bulk is unwelcome.

About Primary Arms

Primary Arms Optics was founded in 2008 and is headquartered in Houston, Texas, United States. The company is known for designing and manufacturing optics across a wide spread of categories, including rifle scopes, prism scopes, red dot sights, mounts, and related accessories. Its lineup is organized into the PLx, GLx, SLx, and CLx product families, giving shooters distinct tiers for different budgets and use cases.

A defining part of the brand's identity is the ACSS reticle system, a Primary Arms technology developed to combine aiming, ranging, and holdover references in a more intuitive format. The company also uses features such as AutoLive motion-sensing illumination in parts of its optics range. Beyond product design, Primary Arms operates e-commerce, wholesale distribution, and government sales divisions, reflecting a strong focus on both civilian and professional shooting markets.

Main Features

• Manufacturer: Primary Arms
• Mount series: Primary Arms Mounts
• Made in: China
• Mount type: Cantilever mount
• Scope / Sight type: 34 mm
• Tube diameter: 34
• BH height: 21.00 mm
• H height: 38.00 mm
• Extension (KR): 0 MOA
• Inclination: 0 MOA
• Offset angle: 0°
• Bubble level: No
• Material: Aluminium
• Weight: 165.00 g

Warranty

2 years. This Primary Arms mount is covered by a two-year warranty period, making it a practical choice for regular sporting and range use where dependable support equipment matters.