Unity Tactical AXON SL, Single Button Remote Switch for Surefire, Fits Picatinny, Matte Finish, Black AXN-SL-S7B AXON SL is the smaller" single button switch in the AXON family. It attaches directly to an M1913 Rail via hardware for a solid control platform. AXON SL features a 45-degree angled button face for an ergonomically correct activation angle" making it easy to index under stress" while wearing PPE or facing extreme environmental conditions. Molded from high-impact polymer" AXON SL holds up to abuse in the field. The mechanical switch design allows weapon light models to fire in both momentary and constant-on modes in a familiar click tail cap design. Laser versions utilize a momentary only switch to facilitate use with the native double tap for constant feature found in most common lasers on the market.