Built for use with Mossberg 500, 590, and Shockwave Series shotgun models; Not intended for use with other shotguns models
Shell holder available in two sizes - 12 gauge saddle accomodating up to six 12 gauge shells and 20 gauge saddle accomodating up to seven 20 gauge shells
Unit installs into the factory mounting holes of Mossberg 500 / 590 / and 590 Shockwave Series shotgun models with no additional gunsmithing required
Rail mount allows for the mounting of Picatinny or Weaver standard scopes, red dots, or other optics
All Monstrum accessory products come with a lifetime guarantee