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Monstrum Side Mounted 12 Gauge Shell Holder Z83 Color: Black, Number of Rounds: 6, $2.96 Off

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Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
1 of 5 images
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
2 of 5 images
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
3 of 5 images
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
4 of 5 images
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83
5 of 5 images
Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83

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Questions & Answers
Will this fit mossberg 88? Expert Answer

No. The Monstrum Side Mounted 12 Gauge Shell Holder will only fit the Mossberg 500, 590, and Shockwave.

by Ethan, Gear Expert, February 10, 2022
Is this shell holder fully compatible with a Mossberg Shockwave model # 50653? Thanks. Expert Answer

Yes. The Monstrum Side Mounted 12 Gauge Shell Holder will fit the Mossberg 500/590/ and shockwave.

by Ethan, Gear Expert, February 10, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Works great, even with crimson trace, but will need longer screws by CJF, Verified Owner, February 19, 2021
very good deal on this very good quality also, good support recommended proper screw length, a lot of reviews on amazon if you need to learn more about this, good product, may get one for my 930 tactical if it fits (not sure).
3/3 found this helpful
Helpful Positive Review
easy install by Cl Markham, Verified Owner, March 24, 2021
Product came in snapped right in place with a little blue locktite. Checked the screws after a few boxes of 00-buck but they are still snug. If it broke tomorrow I’d buy the same exact one, I like it that much.
2/2 found this helpful
Most Recent Reviews
Monstrum side mounted 12 gauge shell holder by Kaleb, Verified Owner, March 19, 2026
I ended up ordering two of these. I liked the first one so much. You don't have to drill and tap the sides of your shotgun to install. It was a simple and easy install on both of my Mossberg 500s. Really enhanced the look of both of them too and gave...
Read More...
Most Recent Reviews
light weight and perfect by Jason, Verified Owner, February 19, 2026
Don't forget if you have a pre mid 90's 500 you have to drill and tap top of receiver. Mounts solid as can be.
Most Recent Reviews
Great side sale by JM, November 15, 2023
Was looking to replace the heavy side saddle on a Mossberg 500 I put on it 10+ years ago. This is a very clean and easy install. Comes with everything you need, aside from any Loctite you may need for peace of mind. Ordered the wrong one the first...
Read More...
Read All 5 Reviews
Color:
Black
Number of Rounds:
6
Hand:
Ambidextrous
Gun Model:
Mossberg Model 500
Condition:
New
Quantity:
1
Gauge:
12

Code: MON-AM-ATHYF1-Z83

MPN: Z83

UPC: 850004377246

List: $39.95Save $2.96
$36.99

Product Info for Monstrum Side Mounted 12 Gauge Shell Holder

Keep your spare shotgun shells right where you need them with the Monstrum Side Mounted Shell Holder with Picatinny Rail Mount. Built for use with Mossberg 500 and 590 Series shotguns, the shell holder accommodates up to six 12 gauge shotgun shells. The ambidextrous design allows for installation on either side of the stock for shooters of all orientations.image

The two piece design is built to be mounted together as a single unit. Shell holder or rail mount will not install as stand alone units using the included mounting hardware. Unit installs into the factory mounting holes of Mossberg 500 or 590 Series shotgun models with no additional gunsmithing required. Also compatible with Mossberg Shockwave, 535, 835, and 590a1 models. Please note that pre-1997 Mossberg shotguns were manufactured with a different mounting hole pattern and will require 6x48TPI screws (not included).

Specifications for Monstrum Side Mounted 12 Gauge Shell Holder:

Manufacturer: Monstrum
Color: Black
Number of Rounds: 6
Hand: Ambidextrous
Gun Model: Mossberg Model 500
Condition: New
Quantity: 1
Gauge: 12
Mount Type: Picatinny
Attachment Type: Picatinny

Package Contents:

  • Monstrum Side Mounted 12 Gauge Shell Holder

Monstrum Side Mounted 12 Gauge Shell Holder Orderable Models

List of Orderable Models

  • Monstrum Side Mounted 12 Gauge Shell Holder, Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns, Black, Z83 , MPN: Z83 , UPC: 850004377246 , Code: MON-AM-ATHYF1-Z83
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