--- product_id: 483987882 title: "Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns" price: "133.96 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/483987882-monstrum-side-saddle-12-gauge-shotgun-shell-holder-compatible-maverick store_origin: TN region: Tunisia --- # Holds 6 shells securely, brass up or down Fits Maverick 88/Mossberg 500/590/Shockwave No gunsmithing needed, installs via pin holes Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns **Price:** 133.96 DT **Availability:** ✅ In Stock ## Summary > 🔥 Lock, Load, and Lead with Monstrum – Your Shotgun’s Ultimate Sidekick! 🔫 ## Quick Answers - **What is this?** Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - **How much does it cost?** 133.96 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/483987882-monstrum-side-saddle-12-gauge-shotgun-shell-holder-compatible-maverick) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Six-Shell Capacity:** Carry extra firepower with a sleek side saddle that holds six 12 gauge shells securely, ready for rapid reloads. - • **Tool-Free Installation:** Mounts directly into existing receiver pin holes—skip the gunsmith, save time and money. - • **Durable Metal Backing Plate:** Built tough with a solid metal backing for long-lasting reliability under heavy use. - • **Precision Fit for Iconic Shotguns:** Seamlessly compatible with Maverick 88, Mossberg 500/590, and Shockwave series—no guesswork, just perfect alignment. - • **Lifetime Warranty & Legendary Support:** Backed by Monstrum’s lifetime warranty and customer service that’s as dependable as your shotgun. ## Overview The Monstrum Side Saddle 12 Gauge Shotgun Shell Holder is a precision-engineered accessory designed exclusively for Maverick 88, Mossberg 500/590, and Shockwave shotguns. It installs effortlessly into existing receiver pin holes without any gunsmithing, securely holding six 12 gauge shells with a durable metal backing plate. Engineered for reliability and backed by a lifetime warranty, this side saddle enhances your shotgun’s readiness and style, making it a must-have for serious shooters and professionals alike. ## Description Product description Mav 88/500/590/Shockwave Monstrum Side Saddle Shell Holder Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns Keep your spare shotgun shells right where you need them with the Monstrum Side Saddle Shell Holder. Built for use with Mossberg 500/590/Shockwave/Maverick 88 Series shotgun platforms, the shell holder accommodates up to six 12 gauge shotgun shells. Unit installs into the pin holes on the side of the receiver with no additional gunsmithing required. Not compatible with other shotgun models. Technical Specifications Compare Our Shell Holders Mossberg Side Saddle Compatible Models: Mossberg 500/590 Other Models: Mossberg Shockwave More Models: Mossberg Maverick 88 Mounting System: OE Side Pins Included Picatinny: 12.9 Hardened Steel: Learn More Mossberg Side Saddle Compatible Models Mossberg 500/590 Other Models Mossberg Shockwave More Models Mossberg Maverick 88 Mounting System OE Side Pins Included Picatinny 12.9 Hardened Steel Remington Side Saddle Compatible Models: Remington 870 Other Models: Remington TAC-14 More Models: Remington 1100 Mounting System: OE Side Pins Included Picatinny: 12.9 Hardened Steel: Learn More Remington Side Saddle Remington 870 Remington TAC-14 Remington 1100 Universal Side Saddle Compatible Models: Picatinny Systems Other Models: KelTec KSG/KS7 More Models: IVI Tavor T12 Mounting System: Picatinny Mount Included Picatinny: 12.9 Hardened Steel: Learn More Universal Side Saddle Picatinny Systems KelTec KSG/KS7 IVI Tavor T12 Picatinny Mount Winchester Side Saddle Compatible Models: Winchester SXP Other Models: Winchester Defender More Models: Winchester 1300 Mounting System: OE Top Bolts Included Picatinny: 12.9 Hardened Steel: Learn More Winchester Side Saddle Winchester SXP Winchester Defender Winchester 1300 OE Top Bolts Stoeger Side Saddle Compatible Models: Stoeger M3000/M3500 Other Models: Franchi Affinity 3 More Models: Franchi Affinity 3.5 Mounting System: OE Top Bolts Included Picatinny: 12.9 Hardened Steel: Learn More Stoeger Side Saddle Stoeger M3000/M3500 Franchi Affinity 3 Franchi Affinity 3.5 Review: Great product, great company, great customer service - Ordered this item for, my recent purchase of my Mossberg Maverick 88. Bought this as the combo package with the two barrels, and wanted to stay at a budget point. With that said, I wanted to accessorize it, but not spend a ton of money. I bought the Monstrum side saddle, and didn't have any preconceived notions as to how good it was. When it arrived, I was pleasantly surprised at how solid it was and how nicely built. I honestly just expected a piece of plastic. It has a great metal backing plate. It was also designed perfectly, and lined up exactly with the holes for installation. Easy to read and understand instructions made installation a breeze. After a day at the range, it worked perfectly. Upon cleaning the firearm post shooting, I did realize it was a little loose. That did not surprise me, as the force of 100 rounds through a 12 ga shotgun would knock anything loose. I also never used any loctite on installation. ( hindsight) When I tried to tighten it up, I think I added a little too much force, and probably stripped one of the mounting screws....my fault, not the product. I reached out to Monstrum, to buy replacement screw/pin, so I could remedy this issue. The gentleman asked for a copy of my order ( gave the desertcart screenshot picture) and my address. He never asked for any kind of payment at all. Two days later the parts showed up, and perfect delivery. Outstanding customer service and standing behind their products. I wish all companies were this good. Highly recommend their products. Review: Good equipment - This side saddle fit my Mossberg 500 12g perfectly as advertised. Because my gun's forearm is the long version (which helps with my short stature...), I cut the front shell holder off and drilled a new rear mounting hole. The front end has 2 mounting holes, and I used the "wrong one" to move the whole shell holder back a little more. I'm very happy with it, and I used it in a defensive shotgun course last weekend. I am a certified shotgun instructor and FFL dealer. This is good equipment. The shell tension is just right, and you can place shells brass up or down without them falling out. ## Features - Side saddle shell holder for use with Mossberg 500/590/Shockwave/Maverick 88 Series shotgun platforms - Unit installs into the pin holes on the side of the receiver with no additional gunsmithing required - Accomodates up to six 12 gauge shotgun shells - Not compatible with other shotgun models - All Monstrum mount and accessory products are backed by a lifetime warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BGMRKNMH | | Best Sellers Rank | #39,881 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #84 in Hunting & Shooting Gun Stock Accessories | | Brand Name | Monstrum | | Customer Reviews | 4.1 4.1 out of 5 stars (270) | | Date First Available | September 27, 2022 | | Item Package Dimensions L x W x H | 7.91 x 2.87 x 1.77 inches | | Item Weight | 7.83 Ounces | | Manufacturer | Monstrum | | Package Weight | 0.22 Kilograms | | Part Number | ZH130 | | Style | 12 Gauge | ## Images ![Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - Image 1](https://m.media-amazon.com/images/I/51EK3tU6QBL.jpg) ![Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - Image 2](https://m.media-amazon.com/images/I/71UUkbJVubL.jpg) ![Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - Image 3](https://m.media-amazon.com/images/I/510xMhZntDL.jpg) ![Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - Image 4](https://m.media-amazon.com/images/I/71BbyqOg5GL.jpg) ![Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - Image 5](https://m.media-amazon.com/images/I/71QtcsupVxL.jpg) ## Questions & Answers **Q: Will this work with crimson trace?** A: Works with Iron, metal and hard plastic **Q: Would it work on a Mossberg 590s tactical ?** A: I would think so. **Q: Does this fit the 88 maverick cruiser?** A: Yes. **Q: Does it work on a mossberg 500A?** A: It will work on a Mossberg 500a. I would not buy it tho. Does not hold the shells firmly. You can shake them out of the carrier. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product, great company, great customer service *by Z***. on November 9, 2023* Ordered this item for, my recent purchase of my Mossberg Maverick 88. Bought this as the combo package with the two barrels, and wanted to stay at a budget point. With that said, I wanted to accessorize it, but not spend a ton of money. I bought the Monstrum side saddle, and didn't have any preconceived notions as to how good it was. When it arrived, I was pleasantly surprised at how solid it was and how nicely built. I honestly just expected a piece of plastic. It has a great metal backing plate. It was also designed perfectly, and lined up exactly with the holes for installation. Easy to read and understand instructions made installation a breeze. After a day at the range, it worked perfectly. Upon cleaning the firearm post shooting, I did realize it was a little loose. That did not surprise me, as the force of 100 rounds through a 12 ga shotgun would knock anything loose. I also never used any loctite on installation. ( hindsight) When I tried to tighten it up, I think I added a little too much force, and probably stripped one of the mounting screws....my fault, not the product. I reached out to Monstrum, to buy replacement screw/pin, so I could remedy this issue. The gentleman asked for a copy of my order ( gave the Amazon screenshot picture) and my address. He never asked for any kind of payment at all. Two days later the parts showed up, and perfect delivery. Outstanding customer service and standing behind their products. I wish all companies were this good. Highly recommend their products. ### ⭐⭐⭐⭐⭐ Good equipment *by A***N on February 19, 2026* This side saddle fit my Mossberg 500 12g perfectly as advertised. Because my gun's forearm is the long version (which helps with my short stature...), I cut the front shell holder off and drilled a new rear mounting hole. The front end has 2 mounting holes, and I used the "wrong one" to move the whole shell holder back a little more. I'm very happy with it, and I used it in a defensive shotgun course last weekend. I am a certified shotgun instructor and FFL dealer. This is good equipment. The shell tension is just right, and you can place shells brass up or down without them falling out. ### ⭐⭐⭐⭐⭐ Great fit use blue lock tite *by R***Y on April 4, 2026* It fits good just get a small sturdy Phillips screwdriver to tighten screws inside the trigger area and be sure to use blue lock tite on the screws to keep secure and not come loose other than that it’s a great fit on my Mossberg maverick 88 ## Frequently Bought Together - Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns - Mossberg 500/590 Series Shotgun Picatinny Rail Mount - XXTACMM Enhanced Slide Safety for Mossberg 500 590 835 930 Shockwave Accessories Aluminum 5 Color Option --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/483987882-monstrum-side-saddle-12-gauge-shotgun-shell-holder-compatible-maverick](https://www.desertcart.tn/products/483987882-monstrum-side-saddle-12-gauge-shotgun-shell-holder-compatible-maverick) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-30*