Click-on, lock-out tailcap allows you to have the choice of momentary or constant-on light without having to rotate the light’s tailcap.
SPECS: Z48 - Aluminum, black. Fits 6P, D2, D3 C2, C3, Z2, M2, M3, M3T, and M4 model lights. Z57 - Aluminum, black. Fits Executive Series flashlights: E1E, E1L, E2D, E1E, E2L, and E20.
Catalog page 365