Description Designed for use with all M-LOK mounting surfaces, the M-LOK Polymer Cantilever Rail/Light Mount allows the attachment of various MIL-STD-1913 Picatinny-Spec rail-mounted accessories such as lights and optics. It directly interfaces with the popular Surefire M300/M600 series Scout Lights or Magpul Light Mount V-Block and Rings. The Cantilever Rail/Light Mount has Picatinny slots that extend forward .75"-1.5" past the M-LOK mounting slot to improve ergonomics and optimize accessory positioning in a wide variety of uses, while keeping lights and accessories low to reduce the weapon's profile.