Sidelok Absolute Co-Witness Mount Qd For Trijicon Rmr Black

The Sidelok Absolute Co-Witness Mount QD for Trijicon RMR is a quick-detach optics mount built around a simple principle: your red dot should come off and go back on without tools, hassle, or losing zero. Kinetic Development Group engineered this system for shooters who want the flexibility to swap optics between rifles or remove them for storage and cleaning, then remount with confidence that your point of aim stays true. Whether you're running a pistol-mounted red dot on an AR, a competition gun, or a duty carbine, the Sidelok delivers the speed of QD convenience without the traditional bulk or complexity.

Push-button simplicity replaces levers, knobs, and multi-step procedures. The design locks down securely to any Picatinny rail and maintains absolute zero return—every time you remount the optic in the same position, you get back to where you zeroed it. A safety detent prevents accidental shifts or drops during handling or recoil. At 3.4 ounces and measuring just 2.686 inches long, the Sidelok stays compact and adds minimal footprint to your setup.

The absolute co-witness height (0.9 inches from the rail) puts your red dot perfectly aligned with iron sights, giving you redundancy on a dedicated optics platform or a backup aiming solution when running irons. Black anodized finish matches modern rifle builds and resists corrosion. Compatibility spans Trijicon RMR, Holosun 407/507/508/509 series, Swampfox models, Vector Optics, and a broad roster of compact red dots—check the full list to confirm your optic fits.

This is purpose-built hardware for serious shooters who refuse to compromise on reliability. The Sidelok is field-proven by competition shooters, law enforcement trainers, and hunters who know that a quality mount is as important as the optic itself.

Key Features

• Push-button quick-detach design—no tools, levers, or oversized knobs required
• Maintains absolute zero and guarantees return to zero on remount
• Safety detent prevents unintentional movement or detachment
• Absolute co-witness height optimized for iron sight backup
• Compact and lightweight (3.4 oz) design minimizes rail footprint
• Black anodized finish for durability and corrosion resistance

Specifications

Frequently Asked Questions

What red dots are compatible with the Sidelok Absolute Co-Witness Mount?

The Sidelok works with a wide range of compact optics, including Trijicon RMR and SRO, Holosun 407C through 509T X2 (407C, 407C V2, 507C, 507C V2, 507C X2, 508T, 508T X2, and 509T X2 with RMR adapter), Swampfox Kingslayer, Liberty, and Justice models, Vector Optics Frenzy, ADE Advanced Optics RD3 series, Riton X3 Tactix PRD, NcStar VISM FlipDot Pro, and Ameriglo HAVEN. Always verify your specific optic model before purchase.

How does the quick-detach system work, and will my zero hold?

The Sidelok uses a push-button design to mount and detach your optic from the Picatinny rail without tools. The system is engineered to maintain absolute zero and guarantee return to zero when the optic is remounted in the same position where it was originally zeroed. A safety detent prevents accidental movement during handling or firing.

What does absolute co-witness mean?

Absolute co-witness refers to the mount height (0.9 inches from the rail), which aligns your red dot's point of aim with standard iron sights. This gives you a redundant aiming solution—you can use the red dot as your primary sight and fall back to irons if needed, or vice versa, without having to readjust your aim.

What's the weight and how compact is this mount?

The Sidelok weighs just 3.4 ounces and measures 2.686 inches in length, 1.10 inches in width, and 0.9 inches in height from the rail. It's designed to add minimal bulk and footprint to your setup while maintaining rock-solid security.