The Radian Guardian+Six is an optic mounting system and integrated backup sight solution designed for Glock MOS slides compatible with Holosun 407/507 footprints. Machined from 7075 aluminum and finished with a Type III hard-anodize, the Guardian provides top, front, and side protection for a mounted red dot while retaining a low-profile sight picture. The included SIX back-up sights deploy a low co-witness iron sight option for redundancy in the event an optic becomes inoperative.
Key Specifications
- The product is the Guardian+Six Optic Mounting System.
- Material is 7075 aluminum Type III hard-anodized.
- Compatibility is listed as Glock MOS.
- Optic footprint compatibility is Holosun 407/507.
- The package includes mounting hardware (plate screws, TRU-SEAL O-rings, STUD-LOK studs and self-locking sleeve nuts).
- Mount type is specified as to slide installation.
- Fasteners are custom machined stainless steel with oversized Torx sockets.
- Sealing is provided by TRU-SEAL with O-rings to resist moisture at the mounting interface.
- Backup sight system is SIX back-up sights (BUS) with ultra low co-witness and anti-glare, anti-snag profile.
- Listed weight is 0.208 (unit not specified in source data).
The Guardian+Six combines robust material construction, a secure STUD-LOK mounting interface, and integrated back-up iron sights to deliver a durable, low-profile optic solution for Glock MOS platforms using Holosun 407/507 footprints. Its TRU-SEAL feature and O-ring protection are intended to reduce moisture exposure at the mounting interface, while the SIX sights provide an unobtrusive iron option that deploys when needed. For users prioritizing a strong, hardware-inclusive optic mount with sight redundancy, the Guardian+Six offers a purpose-built, no-nonsense option.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




