Primary Arms SLx Offset Reflex Mount For One-Piece Scope Mounts

• 33° offset layout: Places a mini reflex sight at a fast transition angle, so a slight rifle roll brings a close-range aiming point into view without changing the main scope setup.
• Glock MOS interface: Uses the widely recognized MOS adapter-plate pattern, giving this mount broad compatibility with mini reflex sights and making footprint selection more flexible.
• Built for SLx one-piece mounts: Designed to attach to compatible SLx 30mm and 34mm one-piece scope mounts, creating a clean backup-sight solution without adding a separate rail section.
• Aluminium construction: Keeps weight to just 42.00 g, helping preserve rifle balance while still providing the rigidity needed for a dependable optic mount.
• Hard-use finish: The black hardcoat anodized surface adds wear resistance, which matters on a mount that is handled frequently during optic changes and field use.

About the Primary Arms Mounts Series

Primary Arms Mounts covers a broad range of optic-mounting solutions for shooters who want to configure rifles around a specific role rather than force optics into a one-size-fits-all setup. The series includes mounts for scopes, magnifiers, and red-dot optics, along with scope rings and risers, so it supports everything from traditional magnified setups to compact backup-sight arrangements. Within the lineup, Primary Arms offers versions for 1-inch, 30mm, and 34mm optics, reflecting the needs of both lightweight sporting rifles and larger precision or tactical optics.

A defining trait of the series is its practical variety of interfaces and formats. The catalog includes cantilever scope mounts, separate rings, risers, and magnifier mounts, including flip-to-side designs that move an optic between in-line and offset positions. Primary Arms also offers mounts with different attachment styles, including cross-bolt and thumb-screw configurations, allowing shooters to prioritize either a more permanent installation or faster removal. Across the range, the design philosophy is straightforward: keep the mounting system secure, uncomplicated, and matched to the optic’s intended use.

About the Primary Arms SLx Offset Reflex Mount For One-Piece Scope Mounts

The Primary Arms SLx Offset Reflex Mount For One-Piece Scope Mounts is built for shooters who run a magnified optic as their primary sight but want a faster solution for close targets. By adding a mini reflex sight at a 33° offset, this mount allows quick transitions from the main scope to a secondary aiming point with only a slight rotation of the rifle. In practical use, that means a rifle set up for distance can still handle close-range engagements without changing magnification, adjusting parallax, or compromising the main optic position.

This model is designed specifically for compatible SLx 30mm and 34mm one-piece scope mounts, which gives it a cleaner and more integrated fit than improvised offset solutions built around extra rail sections. The Glock MOS mounting standard broadens compatibility by working with MOS-pattern adapter plates, making it easier to pair the mount with a wide range of mini reflex sights. That flexibility is useful for shooters who already own a preferred pistol-style red dot or want to standardize optics across multiple firearms.

At 42.00 g, the mount adds very little mass to the rifle, so it preserves handling and keeps the backup sight from making the setup feel top-heavy. Its aluminium construction provides the stiffness needed for a stable optic platform, while the black hardcoat anodized finish helps resist wear from regular use. The result is a compact offset mount that suits hunting optics, practical rifle setups, and general-purpose carbines where fast sight transitions matter.

About Primary Arms

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

Within its optics range, Primary Arms organizes products into the PLx, GLx, SLx, and CLx lines, each aimed at different performance tiers and use cases. The company is especially known for the ACSS reticle system, a proprietary reticle concept developed to combine holdovers, ranging references, and rapid target acquisition in a more intuitive layout. It also offers technologies such as AutoLive motion-sensing illumination on selected optics. That combination of practical feature design and a wide supporting mount ecosystem makes Primary Arms a well-established name in modern sporting and tactical optics.

Main Features

• Manufacturer: Primary Arms
• Mount series: Primary Arms Mounts
• Made in: China
• Mounting Standard: Glock MOS
• Offset angle: 33°
• Bubble level: No
• Color: Black
• Material: Aluminium
• Weight: 42.00 g

Warranty

2 years. This mount is covered by a 2-year warranty period.