JPoint Mount Adapter for Melt-in Rib Installation
Mounting this adapter requires you to cut out a section of top rib and then affix the base to the barrel with the included high-tech adhesive. This results in a sight position that puts the window of the sight roughly even with the rib for incredible speed on steel target or birds and carbine accuracy with slugs. You can also continue to shoot off the rib in case you don't want to use the sight or you have a battery failure.
The contour of this adapter is tapered to match a Remington 11/87 or 1100 barrel.