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SM 4-Round Shotshell Holder fits Rem 870/1100/11-87
SM 6-Round Shotshell Holder fits *Rem 870/1100/11-87
SM 6-Round Shotshell Holder fits Moss 500/590
SM 6-Round Shotshell Holder fits Moss 500/590
PR 6-Round Shotshell Holder fits Benelli M4/M1014
PR 6-Round Shotshell Holder fits Benelli M4/M1014
PR 6-Round Shotshell Holder fits Benelli M4/M1014
SM 8-Round Shotshell Holder fits *+Rem 870/1100/11-87
PR 8-Round Shotshell Holder fits Benelli M4/M1014
PR 6-Round Shotshell Holder fits *Rem 870/1100/11-87
SM 4-Round Shotshell Holder fits Rem 870/1100/11-87
SM 6-Round Shotshell Holder fits *Rem 870/1100/11-87
SM 6-Round Shotshell Holder fits Moss 500/590
SM 6-Round Shotshell Holder fits Moss 500/590
PR 6-Round Shotshell Holder fits Benelli M4/M1014
PR 6-Round Shotshell Holder fits Benelli M4/M1014
PR 6-Round Shotshell Holder fits Benelli M4/M1014
SM 8-Round Shotshell Holder fits *+Rem 870/1100/11-87
PR 8-Round Shotshell Holder fits Benelli M4/M1014
PR 6-Round Shotshell Holder fits *Rem 870/1100/11-87
None
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MESA TACTICAL PRODUCTS, INC. - SM 6-Round Shotshell Holder fits Moss 500/590

26 Reviews
Cartridge Capacity
Make Model Fit
Model Number
SM 6-Round Shotshell Holder fits Moss 500/590
Brownells #
100002649
MFR #
90390
UPC
878405000228
$92.99
Coupon Code
Purchase Limit Help

Out of Stock

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Specifications
Cartridge:
12 Gauge
Make Model Fit:
Mossberg.500;Mossberg.590
Cartridge Capacity:
6
Gauge:
12 Gauge
Model Number:
Side Mount
Restriction
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What is the MESA TACTICAL PRODUCTS, INC. - SM 6-Round Shotshell Holder fits Moss 500/590?

Rugged and lightweight, aluminum shell holders put extra 12 gauge shotshells on the left side of the receiver for fast tactical reloads. Shells are held in place with a unique, internal Santoprene™ elastomer rib that securely retains even heavy slug shells during vigorous movement or heavy recoil. Available in sidemount (SM) or Picatinny rail (PR) configurations. All necessary installation hardware, tools, and instructions included. Remington Sidemount is available in 4-, 6-, and 8-round capacities and uses steel-on-steel, threaded adapters that replace the trigger group pins to anchor the shell holder securely to the receiver. Remington 870 shotguns require a shortened, tactical-style forend to accommodate 6- and 8-round sidemount units. Remington 1100/11-87 require minor forend alterations to fit the 8-round model. Remington Picatinny is a 6-round model that features an integral Picatinny rail for mounting sights, optics, or other accessories. Wraps around the top and mounts to both sides of the receiver using the same type of attaching system as the sidemount model. Fits Remington 1100/11-87 without modification; requires use of shorter than factory length forearm when used with Remington 870. Mossberg Sidemount is a 6-round unit that attaches in the same manner as the Remington Sidemount. Fits Mossberg 500/590. Mossberg 500 Sureshell Carrier attaches to top mount. Benelli Picatinny models include an integral Picatinny rail and mount to the top of factory drilled/tapped receivers. Available in 6-round for Benelli M1/M2 (requires drilling/tapping receiver for M1), 6- and 8-round for M4/M1014, and 4-round for Supernova shotguns. Mossberg 930 sidemount attaches to the left side of the receiver. Mossberg Picatinny is a 6-round model that features a top Picatinny rail and attaches the same as the Sidemount model. Versamax is a 6-round model that features a top Picatinny rail and attaches to the receiver.


SPECS: 6061 T6 aluminum, anodized, matte black. For 12 gauge only. All models include mounting hardware, rubber gasket, and installation instructions. Right Hand models only. Remington Sidemount fits models 870/1100/11-87 (may require modification to gun). Rem 4-Round Sidemount – 5ј” (13.3cm) long x 1Ѕ” (3.8cm) high. 3.9 oz. (111g) wt. Rem 6-Round Sidemount – 6ј” (15.8cm) long x 1Ѕ” high. 5.4 oz. (152g) wt. Rem 8-Round Sidemount – 7ѕ” (19.7) long x 1Ѕ” high. 7 oz. (200g) wt. Remington Picatinny fits models 870/1100/11-87 (may require modification to gun). 7” (15.8cm) long x 2Ѕ” (6.3cm) high. 7.6 oz. (215g) wt. Mossberg fits models 500/590. 6-round ony. 6-3?8" (16.2cm) long x 1-3?8" (3.5cm) high. 5.2 oz. (147g) wt. Benelli Sidemount fits M1/M2/M3. Benelli 6-Round Sidemount – 6” (15.2cm) long x 2Ѕ” high. 6.3 oz. (179g) wt. Benelli 8-Round Sidemount – 7ѕ” long x 2Ѕ” high. 8.1 oz. (230g) wt. Benelli Picatinny available for M2 (requires drilling tapping reciever to fit M1), M4/M1014, and Supernova. Benelli M2 6-Round Picatinny – 6” long x 2 (5.1cm)” high. 7.4 oz. (210g) wt. Benelli M4/M1014 6-Round Picatinny – 6” long x 2” (5.1cm) high. 7.5 oz. (213g) wt. Benelli M4/M1014 8-Round Picatinny – 7ѕ” long x 2” high. 9.5 oz. (268g) wt. Benelli Supernova 4-Round Picatinny – 8” (20cm) long x 1ѕ” (4.4cm) high. 6.2 oz. (176g) wt.



* Requires use of shorter forend on Rem 870.

+ Requires minor forend alterations to fit Rem 1100/11-87.

** Requires drilling/tapping receiver to fit M1.


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RECEIVER MOUNT SHOTSHELL HOLDER REVIEWS

4.6
26 Reviews
5 Stars
73%
4 Stars
19%
3 Stars
4%
2 Stars
4%
1 Stars
0%
Reviews Summary
Most reviews praise the RECEIVER MOUNT SHOTSHELL HOLDER for its robust construction and ease of installation. Many users liked its solid retention and tactical benefits, though some noted downsides, such as sharp edges, quality control issues, and not being suitable for long-term shell storage. Overall, it’s considered a valuable upgrade for shotguns when quality is a priority.
What Reviewers Are Saying
Product Quality
68%
The shotshell holder is widely recognized for its high-quality materials and solid construction. Reviewers appreciate the durability and the significant enhancement it provides to their shotguns, reinforcing confidence during use. A majority feel that while it might be priced higher than other options, its performance justifies the investment.
Ease of Installation
75%
Many users find the installation process to be straightforward and quick, often requiring no special tools. Reviews indicate that clear instructions are given, although some recommend watching installation videos for added clarity. The ease of installation contributes to a positive user experience.
Shell Retention Concerns
40%
While the shell holder is praised for holding shells securely during operation, several users raised concerns about long-term shell storage potentially leading to retention issues. Some reviews specifically mention that shells may loosen over time, which could be problematic for home defense scenarios.
Design Flaws
30%
Some reviewers voiced dissatisfaction with the product's design, citing sharp edges and compatibility issues with specific shotgun models. Moreover, several noted that the instructions and manual could benefit from clarity improvements. These design flaws somewhat temper the overall positive feedback.
Customer Service Experience
20%
Customer service experiences varied among reviewers, with some finding the support helpful and responsive, while others experienced delays in getting assistance or replacements. This inconsistency highlights the need for improved customer support from the manufacturer.
5
Works perfectly
This is a great product. Easy to install and works perfectly. If you are looking to add a rds and side saddle to your shotgun this product is what you need.
5
Solid like a tank
I gave this 5 stars as the product itself is superb, install wasn't too bad, just needed to youtube an install video and double check the instructions. The adhesive backing and solid lockup of the chicago screws provide no wiggle at all, perfect. The only caveat is the example I purchased had some vertical lines/wear marks on the crest of shell holders, like they rubbed against something. Not a big deal as I intend to run my 870 for what it is, a home defender. As a nice surprise, an extra, stronger, retention tube is included which I intend to replace the stock one once it wears out.
5
Great product.
Added it onto my 870 Police for work and its a great piece of gear. Took a few minutes to install and all I needed no tools just used a car key to screw in the pins. The saddle itself adds almost no weight and with the tactical/police forearm it fits without having to switch em out. Doubled the capicity and lets me alternate between loads and have less lethal/00buck/slugs without having to only have 2 or 3 of each on the mount. More is usually better and Mesa Tactical proves it again.
5
Stunningly Well Designed!
As soon as you open the package you will be impressed with the design, craftsmanship and finish. Two levels of shell retention are available. It does require disassembly of the saddle to change the tension but the needed part is provided. Installed 1 on a Cruiser style 500 and a 2nd on a 590A1. The installation is the same for each model shotgun and is straight forward. Take a few moments to review the instructions. The needed hex head wrenches are included. The only thing you need to add is some blue thread locker. Rock solid after the installation is complete. A thin closed cell (neoprene?) self adhesive foam strip is included. It is applied to the carrier, protects the receiver and helps tension the mounting of the carrier. The following will make more sense once you have the unit in hand. Cut the strip to length as instructed but save the cut off end. Apply by centering the notches on the carriers phillip screw heads. Not mentioned in the instructions but I took the cut off end and shortened it further to fit opposite the carrier plate keyhole. Just a top notch piece of kit and I have other shell holders as comparison.
5
Great Addition to my tactical Rem 870
I ordered this but was concerned that I would not be able to see over the rail to use the sights with a 1081 Carlson Remington 18.5" Choke Combo Barrel. However the sights were high enough and the Saddlecarrier worked great and is a great addition to my Remington 870 that I converted to a tactical defense weapon, that can be used for turkey & deer hunting. The Saddlecarrier little pricey but quality always costs more.
Customer Questions
24 Questions