Monstrum Side Saddle Shell Holder with Picatinny Rail Mount
Shell holder accessory for Mossberg 500/590/Shockwave shotguns with Picatinny rail mount. Provides secure shell storage and easy access; customers note solid construction and easy installation, especially on 590A1 models
Highlights
- Picatinny rail mount compatibility
- fits Mossberg 500/590/Shockwave
- solid build quality
Pros
- secure shell holding
- easy installation
- solid construction
- fits Mossberg 500/590/Shockwave
- well-priced
Cons
- may restrict forend slide on some configurations
Best For
Features
- Shell holder available in two sizes: 12 gauge up to six shells, 20 gauge up to seven shells
- Compatible with Mossberg 500, 590, and Shockwave shotgun models
- Rail mount supports Picatinny or Weaver scope mounts
- Not compatible with Mossberg 500 Bantam, 500 Combo, or Flex models with extended pump actions
- Prefers mounting hardware specified; pre-1997 Mossberg shotguns require 6x48TPI screws (not included)
