The Primary Arms SLx offset mount connects to your SLx 30mm or 34mm scope mount and acts as a built-in host for almost any mini reflex sight. With a 32.5-degree angle offset this mount is compatible with all GLOCK MOS pattern adapter plates making it easy to connect almost any mini reflex sight as a CQB backup to your main rifle scope. This red dot mount features the same reliable materials and construction as the other Primary Arms factory risers and mounting equipment and it comes backed with a lifetime warranty.