The Radian Guardian is one of the strongest optic mounting systems available today. TRU-SEAL™ eliminates the need for an added sealing plate while 0-rings on the mounting screws hold the plate watertight to the slide. This ensures moisture is sealed out, eliminating corrosion in the mounting threads. Radian's STUD-LOK™ threaded stud/nut mounting interface is one of the most secure systems on the market. This provides much longer thread engagement, greater hold down power, with increased shear resistance.
Radian Weapons SIX™ back-up sights (BUS) seamlessly integrate into the Guardian Optic Mounting System providing rapid, reliable, and precise target acquisition in scenarios of red dot optic malfunction. Featuring anti-glare, anti-snag and ultra low co-witness design, these sights lie inconspicuously in wait until you need to deploy them. Like a wingman when things aren't going as planned, SIX™ has your six.