Essentially a compact SR-07 - combines the constant-on and momentary-on functions into one space-saving package. Clamps directly onto picatinny rail. 7” of cable length. The fencing around the button makes it difficult to accidentally activate the constant-on function - you really need to intend it. Normally $86 new, now yours for only $70 OBO! Text is best - 208-406-9940