Trijicon 34 mm Accessory Ring Cap

• Accessory mounting flexibility: Three mounting positions let this 34 mm ring cap accept compatible red dot or Picatinny mounting plates at 12 o’clock or 45°, making it easier to add an offset or top-mounted sight without changing the main scope mount.
• Built for Q-LOC and Slimline mounts: The cap is made to replace the front or rear cap on compatible Trijicon Q-LOC and Slimline style mounts, so it adds capability while keeping the mounting system consistent.
• 6061-T6 aluminum construction: A Mil-Spec drop test rated 6061-T6 aluminum body keeps weight low while providing the strength needed for hard field use on rifles set up for hunting or tactical optics.
• Low-profile dimensions: With a compact 0.98 in (24.89mm) length and 1.95 in (49.53mm) width, the ring cap adds mounting space without creating unnecessary bulk around the optic.
• Made in the USA: Domestic manufacture and a matte black anodized finish support durable day-to-day use and a clean visual match with Trijicon mounts and optics.

About the Trijicon Mounts Series

Trijicon Mounts covers a broad range of mounting solutions for rifle optics, red-dot sights, and scope tubes. Within the company’s catalog, the series includes mounts for products such as the MRO, RMR, and SRO, along with ring and accessory options that let shooters tailor an optic setup to a specific rifle and shooting role. This makes the series relevant both for straightforward sight installation and for more specialized hunting optics or tactical optics configurations.

A defining characteristic of the series is its focus on modularity. Some models are built for Picatinny rails, others for Weaver rails or particular firearm platforms, and the range also includes different height configurations such as low, full co-witness, and lower one-third co-witness. Selected models use Trijicon Q-LOC technology, reflecting a design approach that emphasizes secure attachment, repeatable positioning, and practical adaptability. Across the series, the goal is not simply to hold an optic in place, but to provide a mounting system that can be matched to the rifle, the sighting setup, and the intended application.

About the Trijicon 34 mm Accessory Ring Cap

The Trijicon 34 mm Accessory Ring Cap is a scope-mount accessory designed for shooters who want to expand a riflescope setup without replacing the entire mount. It fits compatible Trijicon Q-LOC and Slimline style mounts and replaces the front or rear cap, turning an existing ring position into a mounting point for additional equipment. In practice, that means a variable-power scope can be paired with a miniature red dot or a small Picatinny-mounted accessory while keeping the system compact and centered around the main optic.

The key advantage is its three-position interface. By allowing compatible plates to be mounted at 12 o’clock or 45° positions, the ring cap supports different sighting preferences and rifle roles. A top-mounted red dot can suit fast transitions at short range, while a 45-degree arrangement can give a natural offset option for shooters who want to keep the primary optic dedicated to magnified work. Because the cap is built from 6061-T6 aluminum and carries a Mil-Spec drop test rated design, it is intended to add this flexibility without compromising durability.

Its compact size and matte black anodized finish help it integrate cleanly with the host mount, while the 0 MOA configuration keeps the accessory interface straightforward for add-on sighting solutions rather than elevation-biased mounting. For rifles set up around a 34 mm scope tube, this accessory ring cap is a practical way to build a more versatile optics package with minimal added bulk.

About Trijicon

Trijicon was founded in 1981 by Glyn Bindon and is based in Wixom, Michigan, United States. The company develops aiming systems for military, law enforcement, hunting, and shooting use, with product lines that include riflescopes, red dot sights, electro-optics, and iron sights. Its long-standing focus in this category is reflected in illumination technologies built around tritium, fiber optics, and LED systems.

The company adopted the name Trijicon in 1985, combining “tritium” and “icon,” and it introduced the ACOG riflescope in 1987. Later, Trijicon introduced the Ruggedized Miniature Reflex (RMR) sight in 2009, a product that became highly influential in the red dot sight segment. This background is directly relevant to Trijicon mounts and accessories, which are built to support the company’s optics ecosystem with the same emphasis on durability, repeatable mounting, and practical field use.

Main Features

• Manufacturer: Trijicon
• Mount series: Trijicon Mounts
• Made in: USA
• Warranty: 2 years
• BH height.: 2.00 mm
• Extension (KR): KR 0.0 mm
• Inclination: 0 MOA
• Adjustable windage: No
• Mounting Standard: Trijicon RMR
• Material: Aluminium
• Tube Size: 34mm
• Housing Material: 6061-T6 Aluminum
• Finish: Matte Black
• Length: 0.98 in (24.89mm)
• Width: 1.95 in (49.53mm)
• Feature: Trijicon Q-LOC™ Technology

Warranty

Trijicon provides a 2-year warranty for this accessory ring cap.

In the Box

• Ring Cap: 1
• Screws: 4
• Hex Key: 1