It may not be pretty but it works. Way, way back when I bought the gun the store put the rail on for me. Its a remington brand rail, but I cant remember the number but its the only one like that they make (or used to). It starts with a 7 and it only has 3 digits..ie 777. I just have standard weaver see thru mounts. It may not be pretty but I have killed many deer with my fiber optic sights and scope. As you can see....plenty of hammer clearance regaurdless of if you want to use see thru mounts or regular mounts. I personally dont care what things look like as long as they work, but some people are different.