Sightmark Tactical 34mm Fixed Cantilever MountSM34022 The Sightmark Cantilever Fixed Mount delivers a rock solid mount for your riflescope for better performance in any competition, hunting and even law enforcement environment. The cantilever family of fixed mount features an aircraft grade aluminum for a durable body and coated with a matte black, non reflective to help reduce glare when using your riflescope.