Yeah, I installed the bore laser 3 times and 3 times I had to match up the beams. Since it attaches via the trigger guard, activating the light/laser can push it off center a little when you push the button. No biggie since I use the night sights anyways. Just have to remind the wife her shots might pull right if she uses the laser for quick acquisition. Makes me think a Mossy Shockwave with a lighted foreend might be in my future as well for HD.