The lock bar on one of my Williams Rear sights became broken.I had the locking screw too tight while adjusting the small horizontal Allen screws.I asked to buy a new locking bar on the Williams Gunsight webpage.No, it will be replaced under warranty.They sent the wrong one.I sent an email and the correct one was sent.If you have to deal with Williams Gunsight, address your correspondence to:Brian Newlon…