Radian Weapons Guardian Optic Guard for Glock MOS - Model H0018, Black

The Radian Weapons Guardian Optic Guard for Glock MOS is a purpose-built protective mounting system designed to safeguard your red dot optic from the impacts and abuse that come with serious duty use or competition shooting. Built from 7075 aluminum and hard anodized for durability, the Guardian provides multi-directional protection—shielding your optic from top, front, and side impacts while maintaining a clean, practical sight picture. If you run backup iron sights, the design keeps them unobstructed and accessible, giving you a true irons-forward option when you need it.

What sets the Guardian apart is the engineering underneath. The STUD-LOK threaded stud and nut interface goes beyond standard mounting, delivering extended thread engagement and superior hold-down power with increased shear resistance. This means your optic stays exactly where you put it, even under recoil or during transitions. The integrated TRU-SEAL system uses pre-installed O-rings on the mounting screws to create a watertight seal directly against your Glock MOS slide, keeping moisture out of the mounting threads and eliminating corrosion—a real concern for pistols that see hard use or outdoor conditions.

The Guardian mounts directly to Glock MOS slides and is compatible with Trijicon RCR optics. It's the kind of accessory that proves its value the moment your gun takes a hard knock and your optic walks away unscathed. For shooters who demand reliability from every component, this is no-compromise protection.

Key Features

• Multi-directional impact protection (top, front, and side coverage)
• Machined 7075 aluminum with hard anodized finish for corrosion resistance
• STUD-LOK threaded interface for maximum hold-down power and shear resistance
• TRU-SEAL system with pre-installed O-rings prevents moisture intrusion and corrosion in mounting threads
• Compatible with Trijicon RCR optics
• Works with Glock MOS slides
• Allows unobstructed backup iron sight picture

Specifications

Frequently Asked Questions

Will this fit my Glock MOS pistol with a Trijicon RCR?

Yes, the Guardian is designed specifically for Glock MOS slides and is compatible with Trijicon RCR red dot optics.

Can I still use backup iron sights with the Guardian installed?

Yes. The Guardian's design maintains an unobstructed, irons-forward sight picture, so you can rely on your backup sights without interference.

How does the mounting system work?

The Guardian uses Radian's STUD-LOK threaded stud and nut interface, which provides extended thread engagement and greater hold-down power than standard mounting methods. The system also includes pre-installed O-rings on the mounting screws that create a watertight seal against your slide through the TRU-SEAL technology.

Does the Guardian protect the optic from impacts?

Yes. The Guardian provides protective shielding from top, front, and side impacts, helping safeguard your red dot from damage if your pistol takes a hard knock.