Radian Weapons Guardian Plus Six Features The Radian Weapons Guardian Plus Six is machined from 7075 aluminum and finished in hard anodize black for a durable corrosion-resistant guard that stands up to daily holstering and hard training. The STUD-LOK threaded stud and self-locking sleeve nut mounting interface gives far longer thread engagement and greater hold down power than a typical screw-down plate which means the optic stays secure under recoil and rough handling. TRU-SEAL O-rings are pre-installed on the mounting screws sealing the plate watertight against the slide and keeping moisture out of the mounting threads to prevent corrosion. Fitting Glock MOS slides and built around the Trijicon RCR footprint the guard is designed specifically for shooters running that optic on a MOS-cut Glock. Six integrated back-up iron sights are built into the Guardian system featuring an anti-glare anti-snag ultra low co-witness design that lies flush until needed. Should the red dot optic malfunction these back-up sights give rapid and precise target acquisition without adding bulk to the slide profile. The kit includes two plate mounting screws two TRU-SEAL O-rings and two STUD-LOK studs with self-locking sleeve nuts so the mount arrives ready to install. This combination of top front and side protection with a reliable sighting backup makes the Radian Weapons Guardian Plus Six a practical upgrade for anyone carrying a Glock MOS pistol with a red dot. Radian Weapons Guardian Plus Six Specifications Manufacturer: Radian Weapons Model: Guardian Plus Six Type: Optic Mount and Guard Compatible Hosts: Glock MOS Material: 7075 Aluminum Finish: Hard Anodized Color: Black Includes: Six Back-Up Iron Sights Mounting Hardware Weight: 2.04 lbs Available At: GrabAGun