They are specially designed for Mossberg 500, 590, fit all 12 Gauge.
Made of high-quality plastic, which is very sturdy and durable. Compared with other metal holders, it is lighter and brings a better shooting experience.
Easier Installation, each holder comes with two double-sided sticker and can be mounted on most of shotgun, no screws required.
How to use: Wipe the surface with the included wet alcohol wipes, then dry it with the dry wipes, tear off the double-sided sticker and stick it to the side of the shotgun and install the holder.