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FAB Defense M4 Buttstock for Remmington 870 Up to $20.40 Off and Coupon Available w/ Free Shipping — 2 models

Mako FX-AGR870FK M4 Style Shotgun Polymer Black
FAB Defense AR15/M4 Collapsible Buttstock w/ Shock Absorber for Remington 870, Black AGR870-FKSB
Mako FX-AGR870FK M4 Style Shotgun Polymer Black
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Mako FX-AGR870FK M4 Style Shotgun Polymer Black
FAB Defense AR15/M4 Collapsible Buttstock w/ Shock Absorber for Remington 870, Black AGR870-FKSB
2 of 2 images
FAB Defense AR15/M4 Collapsible Buttstock w/ Shock Absorber for Remington 870, Black AGR870-FKSB

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Questions & Answers
Can the stock come off and be swapped for my preferred style stock? Manufacturer Answer

Yes, you can replace the stock to any AR stock

by FAB Defense, Manufacturer, June 26, 2025
Will it fit a American tactical semi auto 12 gauge Manufacturer Answer

No. it was made for the Remington 870

by FAB Defense, Manufacturer, June 4, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
Decent, at best by Rick Willett, Verified Owner, June 13, 2025
I ordered the shock absorbing buttstock, but there is almost no shock absorption at all. The recoil is still manageable enough to be able to rapid fire in succession while relatively staying on target. Buttstock was easy to install, even though it ...
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Most Recent Reviews
perfect additions to my 870 by the dude, Verified Owner, April 23, 2025
Awesome items. The shipping came in a timely manner, and everything worked perfectly
Most Recent Reviews
Perfect fit by Dockool, Verified Owner, March 18, 2025
This is a perfect fit for a Remington 870 tactical shotgun. I suspect it will work on any 870 model as well. Has a nice recoil buffer. Two minor issues it didn’t have any instructions on how to install. You just have to unscrew the hand grip from the...
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Most Recent Reviews
Well worth the money by Matt, March 4, 2025
I couldn’t find the hardware so I called Optic Planet and they couldn’t have been more helpful! I felt foolish after finding it in the handgrip. So as far as the stock goes. I hand you this and a $300 one and bet you couldn’t let me the difference. G...
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Most Recent Reviews
Pretty good by Jpmed, March 16, 2023
Put more than plenty of shells with it. And I have no Regrets, works fantastic and still in one piece. The installation was simple the instructions were easy to follow. Everything shipped in with no imperfections.
0/1 found this helpful
Most Recent Reviews
great looking stock! by Eric Cedeno, Verified Owner, September 19, 2024
Would have given this 5 stars if it had come with the stock bolt necessary for installation.
Read All 9 Reviews
Eligible models will have a savings offer. Apply coupon and add the item to your cart for savings on that select model! Limited time only. Cannot be combined with other promotions or offers. See promotion details.
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Product Info for FAB Defense M4 Buttstock for Remmington 870

FAB Defense M4 Buttstock for Remmington 870 - This modular M4-Style Collapsible buttstock and pistol grip system is for your Remington 870 shotgun. Its rugged one piece adapter design features drop-in installation and is textured for secure grip. The pistol grip features a storage compartment to hold extra batteries.image

Compatibility:

  • Remington 870 12 gauge models Shotguns

Specifications for FAB Defense M4 Buttstock for Remmington 870:

Mfg Item Num:  AGR870-FK
Supplier SKU:  20601
Category:  STOCKS AND FORENDS
Type:  Buttstock
Firearm Type:  Shotgun
Firearm Model:  Remington 870
Material:  Polymer
Finish:  Black
Features:  Collapsible
Positions:  6

Package Contents:

  • FAB Defense M4 Buttstock for Remmington 870

FAB Defense M4 Buttstock for Remmington 870 Orderable Models

List of Orderable Models

  • FAB Defense M4 Buttstock for Rem 870, Black, FX-AGR870FK , MPN: FX-AGR870FK , UPC: 7290105940780 , Code: 1S0-2SC-M4BREM-FX-AGR870FK
  • FAB Defense M4 Buttstock for Rem 870 w/ Shock Absorber, Black, AGR870-FKSB , MPN: FX-AGR870FKSB , UPC: 7290105940803 , Code: 1S0-2SC-M4BREM-AGR870-FKSB
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Last updated 2026-07-07 UTC.