Malkoff

Malkoff Devices is a company in Alabama owned by Gene Malkoff that designs, manufactures, and sells LED drop-ins for Maglite and SureFire flashlights, as well as their own line of flashlights. He started off doing hand-made mods and selling them to people on CPF, but demand has increased and in 2007 he started working full-time on flashlight mods. To keep up with demand, some products are now made in factories in the USA. Website

The Surefire drop-ins are P60-compatible (called M60 by Malkoff). Drop-ins are designed with very good heat-sinking and high performance. Malkoff has an excellent reputation for customer service and high quality products on CPF's forums