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Questions & Answers
Will this fit a Mossberg maverick 88 shotgun? (20gauge) Expert Answer

The Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount might work for a Mossberg Maverick 20 gauge. However, the manufacturer does not specifically list that firearm as a compatible model. I recommend contacting the manufacturer to confirm compatibility.

by Hunter, Gear Expert, September 23, 2022
Will this unit fit on the Mossberg SA 20 tactical? Expert Answer

The Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount might fit the Mossberg SA20 Gauge Tactical if the receiver is drilled and tapped. However, the manufacturer does not list the SA20 as a compatible model so fitment cannot be guaranteed.

by Hunter, Gear Expert, July 14, 2022
Customer Reviews
Most Recent Reviews
Very nicely made product which fit my Mossberg Shockwave 20-Gauge perfectly! Now I can have 13 rounds in and on the gun. The picatinny rail allows for the addition of a laser, which makes this type of weapon more accurate and effective.
Most Recent Reviews
Modifications needed. by Nick, Verified Owner, March 31, 2024
Appears to be a quality product but I had to do some modifications to it in order for it to fit my Mossberg Maverick 88 20 gauge shotgun. The pump action would not fully engage or work properly so I had to trim down/out the left side of my synthetic ...
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Read All 2 Reviews
Color:
Black
Gun Model:
Mossberg Model 500, Mossberg Model 590, Mossberg Model 590 Shockwave

Code: MON-SMT-MSC-Z84

MPN: Z84

List: $39.95Save 12%
$34.99

Product Info for Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount

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 seven 20 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).

Requires your receiver to be drilled and tapped

Specifications for Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount:

Manufacturer: Monstrum
Color: Black
Gun Model: Mossberg Model 590 Shockwave, Mossberg Model 590, Mossberg Model 500
Gun Make: Mossberg
Hand: Ambidextrous
Gun Type: Shotgun
Quantity: 1
Condition: New

Package Contents:

  • Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount

Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount Orderable Models

List of Orderable Models

  • Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount - 500/590/Shockwave, Black, Z84 , MPN: Z84 , Code: MON-SMT-MSC-Z84

Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount - 500/590/Shockwave, Black, Z84 , MPN: Z84-DEMO , Code: MON-SMT-MSC-Z84-DEMO
  • Open Box, Dealer Demo, Monstrum Mossberg 20-Gauge Shell Carrier with Picatinny Rail Mount - 500/590/Shockwave, Black, Z84 , MPN: Z84-DMO , Code: MON-SMT-MSC-Z84-DMO
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