The new Sightmark Cantilever Fixed Mounts deliver a rock-solid mount for your riflescope for better performance in any competition, hunting and even law enforcement environment. Featuring six different mounts, the Sightmark Cantilever Fixed Mount is available in 30mm fixed, 30mm LQD, 30 mm fixed with 20 MOA, 34 mm fixed, 34 mm LQD, and 34 mm with 20 MOA. The cantilever family of fixed mounts all feature an aircraft grade aluminum for a durable body and coated with a matte black, non-reflective to help reduce glare when using your riflescope. Features: Fits Picatinny rails