Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns
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Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns

4.5/5
Product ID: 573637150
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🔫Holds 6 shells
⚙️Tool-free install
🛡️Lifetime warranty

Description

🔫 Reload faster, stay sharper — the ultimate side saddle upgrade!

  • PRECISION FIT - Designed exclusively for Mossberg 590/Shockwave for seamless compatibility
  • READY IN SECONDS - Installs easily into existing pin holes—no gunsmithing needed
  • SIX SHELL CAPACITY - Keep 6 shotgun shells at your fingertips for rapid reloads
  • DURABLE DEPENDABLE - Built tough with Monstrum’s lifetime warranty backing your gear
  • STREAMLINED TACTICAL EDGE - Side saddle design keeps your shotgun sleek and mission-ready

The Monstrum Side Saddle Shotgun Shell Holder V2 is a precision-engineered accessory compatible with most Mossberg 590 and Shockwave series shotguns. It mounts effortlessly into existing receiver pin holes without any gunsmithing, securely holding up to six 12-gauge shells. Designed for tactical efficiency and backed by a lifetime warranty, this holder enhances reload speed while maintaining a sleek profile. Note: Not compatible with extended pump or certain Mossberg Bantam and Flex models.

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Specifications

Item Package Dimensions L x W x H7.36 x 3.03 x 2.95 inches
Package Weight0.28 Kilograms
Brand NameMonstrum
ManufacturerMonstrum
Part NumberZH140
Style12 Gauge

Reviews

4.5

All from verified purchases

D**.

Practical & Tacticool

Rail fits perfectly onto the Mossberg Maverick 88, just be careful not to overtighten any screws when you secure it to the firearm. This picatinny rail gives you so many more options for modern day optics to be mounted for use, although you can use the original bead iron sights through the center channel after install if you really want. Be careful when sliding on the mount to avoid any of the scracthing issues people have talked about, just go slow and thoughtful, I installed mine with no issues. Very impressed by the overall construction and feel, as well as the shells holding snugly without any visible migration.

J**.

Would buy again

Worked really good on my Mossberg 500 a

A**T

12g catty

This is a good and strong apparatus holds the 6 12g shells nice and firm.

A**R

Damaged in box.

Update: manufacturer sent me spare parts. And I drilled it out.Very snug fit scratched outside my receiver. I don’t intend to fire this often so this will be fine for me. Rail and ammo slots seem to work well.Note about instructions make sure you fully retract your receiver on the 88 to replace the screw mentioned instructions skipped that step.I know how hard steel can be to work with so for the price and after the inconvenience I’d say it’s fair would have been 5 stars if it hadn’t scratched up the outside.Bought the product unboxed noticed a small scratch along the pin tried to undo one of the screws to install and first side came out fine but other side was channel blocked and got stripped.Seems to be a common occurrence one side is in to tight and channel locked.(I did not use any tools other than those provided by oem and I’m an industrial maintenance technician.)

L**O

Excellent product

Excellent product

C**S

Great buy

Sweet! Worked great, if you’re concerned about scratched just spread it out a little bit! Fits great and functions

D**A

Great buy! True honest review

Fits the Mossberg Maverick 88 perfectly seen a lot of YouTube videos saying it scratching the receiver but the V2 fits perfectly without scratching and with the hardware it's fits tightly made of quality material not overly heavy to add a lot of weight and enough room the still utilize the front bead if you mount a red dot that is nice to know you still have a back up I'm particular on quality and looks and I would highly recommend this for anyone who wants to add for tactical purposes

H**Z

Threaded pin bolt waaay too tight from the box, saddle is unsueable.

Useless, bolt in threaded pin was waaay too tight from the box and stripped the included tool. Almost broke my personal allen key too. Was able to get the left side off, but the right one is impossibly tight for a 2mm allen and I had to stop torquing before the bolt itself strips since that may cause return issues. Very disappointed, 2nd Monstrum product I have issues with this month.

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 75.68

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Monstrum Side Saddle Shotgun Shell Holder V2 Compatible With Mossberg | Desertcart GERMANY