That's right. The SW02 Clickie TailCap like all other SureFire Clickie TailCaps in that the push button pressure click switch can be disabled (locked out) by unscrewing the TailCap from the body [until passed the point at which pressing the switch button no longer activates the light]
The SW02 fits all SureFires featuring standard TailCap threads so that's the 6P/9P, G2, Z2, C2/C3, M2, M3, M4, L5, L6 and the Millennium Universal WeaponLights and Classic Universal WeaponLights as well as a few others.