Featuring a machined slot for cable routing, it is primarily designed to raise a rail-mounted laser by 0.725″. Covering only three slots on an M1913 Rail, it creates a 2.26″ optical centerline from the rail when paired with the Sig Sauer® ROMEO8T or the Leupold™ LCO®. It also brings the Trijicon® SkeetIR™x or the Pixels on Target™ VooDoo-S™ to a 2.26″ optical centerline when those thermals are mounted on a UNITY® CTM™. It comes standard with a 2 cross bolt rail clamp.