Fit could be better and sight could be bigger - Meprolight Remington 870, 1100 & 11-87 Post-2009 Front Night Sights

I mounted this to my 870 and the gunsmith that did the work said its fit was loose. He had to add some kind of metal adhesive. This is fine, I guess, but I was hoping it would fit better. I also wish the size of the bead was larger. Considering its a shotgun, precision shooting that warrants a small bead does not apply. In the end it is definitely more noticeable than the factory sight with no illumination at all. It ain't perfect but I'm not unhappy either...hence the 4 stars.