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FAB Defense M4 Buttstock for Mossberg 500 Up to 20% Off w/ Free Shipping — 2 models

Mako FX-AGM500-FKSB M4 Style Shotgun Aluminum/Steel/Polymer Black
Mako FX-AGM500-FKSB M4 Style Shotgun Aluminum/Steel/Polymer Black
Mako FX-AGM500-FKSB M4 Style Shotgun Aluminum/Steel/Polymer Black
1 of 2 images
Mako FX-AGM500-FKSB M4 Style Shotgun Aluminum/Steel/Polymer Black
Mako FX-AGM500-FKSB M4 Style Shotgun Aluminum/Steel/Polymer Black
2 of 2 images
Mako FX-AGM500-FKSB M4 Style Shotgun Aluminum/Steel/Polymer Black

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Questions & Answers
Is the buttstock removable so you have the option to only use a pistol grip? Manufacturer Answer

You can remove the buttstock but it will not look goog. you can purchase the pistol grip by itself

by FAB Defense, Manufacturer, June 4, 2025
Will this fit the maverick 88 and is the stock interchangeable with other M4 style stocks. Manufacturer Answer

Yes and Yes

by FAB Defense, Manufacturer, April 9, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
stock review for shotgun by a, Verified Owner, June 10, 2025
Ordered for my 590 ...so far was one of the better choices for my shotgun and would recomend to others ...fitment was perfect and no issues so far and dont think ill have any to worry about
1/1 found this helpful
Most Recent Reviews
Sturdy & well designed by Robert, Verified Owner, October 1, 2025
Sturdy with no shaking or loose parts. Smooth finish & clean lines
Most Recent Reviews
Great Product by Matt, Verified Owner, July 7, 2025
This fits perfectly onto Mossberg 500 shotguns. Quality is great. Recoil mechanism works well. Pistol grip is a good size and shape. Well worth the money.
Most Recent Reviews
Mosseberg 500 stock by Boba, Verified Owner, April 26, 2025
The only reason I give it a 4 star and not a 5 is because the recoil pad it comes with is not that comfortable. Other than that it was easy to install and real sturdy. For the money it's worth it
Most Recent Reviews
tokarev titan by McMeenMachine, Verified Owner, April 25, 2025
I bought this to put on my tokarev titan. I did have to break out the dremmel to sculpt this to fit. The easiest way to do it is to lay the grip underneath the firearm and stencil where you'll need to cut. After it was on, it felt good. You can, but...
Read More...
Most Recent Reviews
Solid pistol grip by Chuck, Verified Owner, April 9, 2025
Excellent polymer quality. Recoil reduction works well. I bought 2
Read All 7 Reviews

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Product Info for FAB Defense M4 Buttstock for Mossberg 500

FAB Defense M4 Buttstock for Mossberg 500 - This modular M4-Style Collapsible buttstock and pistol grip system is for your Mossberg 500/590 shotgun. It features a rugged one piece adapter design features drop-in installation and a storage compartment in the grip for extra batteries.image

Specifications for FAB Defense M4 Buttstock for Mossberg 500:

Mfg Item Num:  AGM500-FK
Supplier SKU:  20605
Category:  STOCKS AND FORENDS
Type:  Collapsible Stock
Firearm Type:  Shotgun
Firearm Model:  Mossberg 500/590
Material:  Aluminum/Steel/Polymer
Finish:  Black
Positions:  6

Package Contents:

  • FAB Defense M4 Buttstock for Mossberg 500

FAB Defense M4 Buttstock for Mossberg 500 Orderable Models

List of Orderable Models

  • USED, FAB Defense M4 Buttstock for Moss 500 w/ Shock Absorber, Black, FX-AGM500-FKSB , MPN: FX-AGM500FKSB-EDEMO , Code: 1S0-2SC-M4BMOSS-FX-AGM500-FKSB-EDEMO-RE-B
  • FAB Defense M4 Buttstock for Moss 500 w/ Shock Absorber, Black, FX-AGM500-FKSB , MPN: FX-AGM500FKSB , UPC: 7290105940858 , Code: 1S0-2SC-M4BMOSS-FX-AGM500-FKSB

FAB Defense M4 Buttstock for Mossberg 500 Unavailable & Discontinued Models

List of Unorderable Models

  • FAB Defense M4 Buttstock for Moss 500 and Solid Piece Pistol Grip, Black, AGM500-FK , MPN: FX-AGM500FK , UPC: 7290105940834 , Code: 1S0-2SC-M4BMOSS-AGM500-FK
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Last updated 2026-06-30 UTC.