Inforce wml gen2 weapon light, best in class - INFORCE WML Gen2 Weapon Mounted White LED Tactical Light, 400 Lumens

If you're looking for an entry level - LED that's tough, easy to manipulate and install; Inforces Weapon Mounted Light (WML) is your best bet. This literally took me five seconds to install. The light comes with a "locK" to keep operators from inadvertenly activating the light. The angled button press gives the tool great ergonomics to operate from a C-grip. No tape or buttons to purchase, unless you're a private contractor and your carbine is your daily tool; this is the best buy.