I took my AR-15 to the range last month and noticed that the reticle on my EOTech sight would wash out in bright sunlight. I replaced the batteries but that made no difference. I emailed EOTech about the problem and they said to submit a request for repair. The next morning I received an email saying they would repair the sight at no cost and provided instructions for shipping. I bought this sight in 2008 and so it was well out of warranty. Today I received the sight back including fresh batteries. I tested it and it is bright and clear. So kudos to EOTech for their great customer service.