12-Gauge Shotgun Shell Carrier for Shotguns with Picatinny Rail by Monstrum.

Keep your spare shotgun shells right where you need them with the Monstrum Side Saddle Shell Holder for Picatinny mounting platforms. Built for use with shotguns equipped with a Picatinny mounting base, the shell holder accommodates up to six 12 gauge shotgun shells.

The unit installs on to your Picatinny base with no additional gunsmithing required.