TITLE: C+H Precision Optics 45 Degree Offset Mount - Picatinny Rail Mount for Holosun 407K / 507K Red Dot & C+H EDC UNIVERSAL 45 DEGREE OFFSET MOUNT: Get the perfect mounting option for your backup red dot with our 45-degree Picatinny Mount. Whether you're using a pistol dot for quicker scope acquisition, or need a backup dot for your gas gun, this rugged mount will ensure that you can always get on target. GUN COMPATIBILITY: Will mount on any 1913 Picatinny Rail. C+H RED DOT SIGHT COMPATIBILITY: Mounts onto any C+H EDC red dot sight. HOLOSUN COMPATIBILITY: Compatible with Holosun 407K, Holosun 507K. CONSTRUCTION: Crafted using the highest grade 6061 aircraft grade aluminum.