Includes: Slim Profile Series Offset Picatinny Scope Mount with 45 Degree Venom/Docter Footprint Micro Red Dot Materials: 6061 Aircraft Grade Aluminum Compatibility: AR-15, Rifles with Picatinny rails Weight: 5.00 oz Diameter: 30 mm Length: 5.50 in Base Length: 3.00 in Color: Black Warranty: Lifetime This all-new Monstrum 30mm cantilever dual ring scope mount features an integrated 45 degree offset micro red dot mount. The 45 degree offset micro red dot mount allows for mounting of secondary red dot sight for fast-target acquisition. Mounts to any flat top Picatinny rail equipped rifle platform. Compatible red dots attach directly to the micro red dot attachment point using the Docter/Noblex red dot footprint pattern.