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Questions & Answers
does this work with Norinco Sks' (type 56)? Expert Answer

The FAB Defense M4 SKS SB Complete Chassis System should work fine with that rifle.

by Hunter, Gear Expert, September 19, 2023
Will this fit a Korean era Russian sks Manufacturer Answer

Yes, it should fit the Russian SKS

by FAB Defense, Manufacturer, November 26, 2025
Customer Reviews
Helpful Negative Review
I wanted to like this stock by A, Verified Owner, November 23, 2023
This stock is probably really good and really awesome for literally anyone else but me. I tried cutting the stock and trimming it but the SKS still won't fit. I don't know if it was because of my SKS or the stock but I will have to reluctantly give t...
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1/1 found this helpful
Most Recent Reviews
Do not miss out !!! by Big Gangsta F12, Verified Owner, December 3, 2025
Excellent !! Get one now. Wood is no good. For the ones saying Bubba!! Haters gone hate
Most Recent Reviews
Needs a up dated version. by Gunner2U, May 18, 2021
The buttstock only folds to the right which then is in the way of the bolt action and the ejection. There is a hex-screw that holds the buttstock on and will alow you to flip it around where it folds to the left but then the buttstock is upside down...
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13/13 found this helpful
Most Recent Reviews
Initially received a UAS unit and the dust cap was missing 2 little springs on the back of the dust cap. I couldn’t figure out why it would move freely... I contacted Fab and they said to bring it to a smith, who of course said there was something m...
Read More...
Most Recent Reviews
Built solid by Fish, Verified Owner, November 23, 2023
Got it as a gift for someone and never got to see it put on but checked the box when it arrived and it was seemingly solidly built.
Read All 5 Reviews
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Product Info for FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock

Upgrade your weapon build with this FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock. These Rifle Stocks from FAB Defense are constructed from fiberglass reinforced polymer for a durable yet lightweight structure. This FAB Defense M4 SKS SB Complete Chassis System w/ Shock Absorbing M4 Tube & Folding Buttstock features 5 QD sling swivel sockets so that you can attach a sling, and the built-in enhanced mag release lever speeds up your reloads to keep you focused on your target. Use this FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock to create a better, more reliable firearm.image

Specifications for FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock:

Manufacturer: FAB Defense
Gun Model: SKS
Length: 848 mm
Weight: 1360 g

Features of FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock

  • Quad Picatinny rail system- Upper, Lower & two removable side rails
  • Folding buttstock - Push-button side folding mechanism and spring based locking in folded position
  • Five QD sling swivel sockets
  • Large ergonomic pistol grip
  • Integrated enhanced magazine release lever
  • Three buttstock options, M4 collapsible, Shock Absorbing or UAS
  • Durable and lightweight fiberglass reinforced polymer construction

Package Contents:

  • FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock

FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock Orderable Models

List of Orderable Models

  • Open Box, Dealer Demo, FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock, OD Green, FX-M4SKSSBG , MPN: FX-M4SKSSBG-DMO , Code: 1S0-RSC-CSM4T-FX-M4SKSSBG-DMO-OB-A
  • Open Box, Dealer Demo, FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock, FDE, FX-M4SKSSBT , MPN: FX-M4SKSSBT-DMO , Code: 1S0-RSC-CSM4T-FX-M4SKSSBT-DMO-OB-A
  • FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock, OD Green, FX-M4SKSSBG , MPN: fx-m4skssbg , UPC: 7290111584954 , Code: 1S0-RSC-CSM4T-FX-M4SKSSBG
  • FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock, FDE, FX-M4SKSSBT , MPN: fx-m4skssbt , UPC: 7290111584961 , Code: 1S0-RSC-CSM4T-FX-M4SKSSBT
  • FAB Defense M4 SKS SB Complete Chassis System, w/ Shock Absorbing M4 Tube & Buttstock, Black, FX-M4SKSSBB , MPN: fx-m4skssbb , UPC: 7290111584947 , Code: 1S0-RSC-CSM4T-FX-M4SKSSBB
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