I went through the weapon light evolution. First the Solarforce with epoxied electronics that could even survive the Saiga’s bolt carrier slamming the receiver. Then the Streamlight pistol lights. Now it’s the Olight PL-2 Valkyrie. I’ve got an Olight PL-Pro Valkyrie coming in the mail. It’s pressure switch set up is probably going to need a strap to hold it on under use or recoil. Pistol lights on a rail can be plugged on to any rail system and all use the same CR123A battery. CR123A’s cost a dollar a piece and can sit on a shelf for 20 years. I’m seeing these lights also being mounted on helmets, bikes, stored on belts.