I have an old-style surefire forend light for my Remington 870 12 ga. It's got a pressure pad so the light turns on when you grip the gun and it uses an incandescent bulb. Well, in early January I came home from a long stint of work travel. Took my 870 out of the safe, loaded it up and checked the forend light. It wouldn't turn on. Dang. Must've forgot to unscrew it before leaving. Replaced the batteries and still a no. I took out a multimeter and a little piece of primary wire and within a few minutes I determined that the switch had gone bad (continuity at all contact points, light worked when "hot-wired," etc.). Sent it in to surefire for repair. They got it back to me last week. The CS rep said all they did was replace the bulb (even though the bulb was perfectly fine when it was in my possession). Put batteries in, and it worked once more. Put it on the gun, checked it a few hours later and once again the light was not working. With the pad depressed and the tube screwed all the way in, the light would not turn on. I did the same checks as last time and I was able to once again get the light working by putting batteries in the tube and connecting the negative terminal of the battery to the threads with a wire. They just sent me a shipping label, so I won't have to pay for it this time at least. Hopefully they can fix it this time and I sure hope it doesn't take another 6 weeks! I need to find another cheap forend in the meantime and possibly a different forend light going forward. This has not been a confidence-inspiring experience.