The BlackJack BJ005 Flashlight Holder for fire helmets is part of the BlackJack helmet mount series. It’s designed to fit round and semi-round lights such as the Pelican 2350 and 3330 lights, as well as the Streamlight Poly-Tac, and Surefire G2 series lights. The BJ005 is the direct result of input from our customers who wanted the ability to remove their light, use in hand and then return to the helmet. The BJ005 will accommodate lights up to 1 1/8″ in width. It is important to note that with the larger lights, the fit, and functionality of the mount is greatly increased with a “Nitrolon” or plastic outer shell on the light. Large metal lights with knurl on the body of light tend to be difficult to remove. The inner dimensions of this BJ005 BlackJack helmet mount for flashlights is 1 1/8″.