---
product_id: 314768107
title: "Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns"
brand: "monstrum"
price: "€ 73.22"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/314768107-monstrum-side-saddle-shell-holder-with-picatinny-rail-mount-mossberg
store_origin: NL
region: Netherlands
---

# Holds up to 7 shells securely Fits Mossberg 500/590/Shockwave perfectly No gunsmithing needed for installation Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns

**Brand:** monstrum
**Price:** € 73.22
**Availability:** ✅ In Stock

## Summary

> 🔫 Reload in style—never miss a beat with Monstrum’s side saddle shell holder!

## Quick Answers

- **What is this?** Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns by monstrum
- **How much does it cost?** € 73.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/314768107-monstrum-side-saddle-shell-holder-with-picatinny-rail-mount-mossberg)

## Best For

- monstrum enthusiasts

## Why This Product

- Trusted monstrum brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lifetime Guarantee:** Confidence backed by Monstrum’s lifetime warranty—gear up without worry
- • **Durable Polymer Build:** Lightweight yet rugged design built to withstand tough conditions
- • **Generous Shell Capacity:** Accommodates up to 7 shells for rapid reloads and sustained performance
- • **Streamlined Side Saddle Design:** Keeps shells within easy reach while maintaining sleek firearm profile
- • **Precision Fit for Mossberg Series:** Seamlessly mounts using factory holes—no extra tools required

## Overview

The Monstrum Side Saddle Shell Holder is a precision-engineered polymer accessory designed exclusively for Mossberg 500, 590, and Shockwave shotguns. It securely holds up to seven 20 gauge shells, installs effortlessly using factory mounting points without gunsmithing, and comes backed by a lifetime guarantee—perfect for professionals who demand reliability and quick reloads in the field.

## Description

Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns

## Features

- 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
- All Monstrum accessory products come with a lifetime guarantee

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black |
| Brand | Monstrum |
| Material | polymer |
| Item Weight | 7.05 Ounces |
| Number Of Pockets | 2 |
| Closure Type | open top |
| Pocket Description | Side-mounted shell holder pocket |
| Manufacturer | Monstrum |
| Number of Compartments | 2 |
| Item Package Dimensions L x W x H | 8.82 x 5.87 x 2.28 inches |
| Package Weight | 0.2 Kilograms |
| Brand Name | Monstrum |
| Part Number | Z83-20G |
| Style | 20 Gauge |
| Size | 20 Gauge |

## Product Details

- **Color:** Black
- **Brand:** Monstrum
- **Material:** polymer
- **Item Weight:** 7.05 Ounces
- **Number Of Pockets:** 2

## Images

![Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns - Image 1](https://m.media-amazon.com/images/I/619vpJD7W5L.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns
- Pachmayr 05103 Tactical Grip Glove for Moss Shockwave & Rem Tac 14, Black
- XXTACMM Enhanced Slide Safety for Mossberg 500 590 835 930 Shockwave 12/20 Gauge Aluminum 5 Color Option

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**Shop now:** [https://www.desertcart.nl/products/314768107-monstrum-side-saddle-shell-holder-with-picatinny-rail-mount-mossberg](https://www.desertcart.nl/products/314768107-monstrum-side-saddle-shell-holder-with-picatinny-rail-mount-mossberg)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-06*