Call the manufacturer.
"At Crimson Trace, we feel strongly that a company should stand behind its products. Not as a stuffy, written policy, but as a lifestyle. In addition to manufacturing our laser sights and tactical lights, as well as testing them to our rigorous standards….right here in America, we back them with a full 3-Year Warranty for all current models.
We understand that even the highest quality consumer products can fail – even if it’s a rarity. With that, we’re confident that if you need to exercise our warranty, you’ll find that it’s a breeze. Simply call our outstanding Customer Service team at 1-800-442-2406 and you’ll be taken care of."