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FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes w/ Free Shipping — 4 models

Special offer available for this product. Click here to see!
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FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG-KIT1
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
1 of 3 videos
Fab Defense - GL Core Family of Stocks
2 of 3 videos
FAB Defense GL Core and GL Core CP
3 of 3 videos
FAB Defense GL-Core assembly video instructions
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
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FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET
2 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG
3 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG-KIT1
4 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG-KIT1
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
5 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
6 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
7 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET
8 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
9 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
10 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
11 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
12 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB
13 of 13 images
FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB

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Questions & Answers
Is the sling swivel socket free rotating or stepped? Expert Answer

FAB Defense provides no information as to whether the QD socket is free spinning or if its limited rotation. You will need to contact FAB Defense directly to verify. Here is their contact information:

https://www.fab-defenseus.com/contact-us

by Armando R., Gear Expert, February 2, 2021
See 2 More Answers
Will this fit on a Cmmg banshee 9mm? Manufacturer Answer

It will fit any commercial or mil-spec tube

by FAB Defense, Manufacturer, September 3, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Expert Review
Favorite Stock On Any Rifle by Andrew, Gear Expert, April 4, 2024
This is by far my favorite stock to use on all of my ARs. Zero wobble and the ergonomics just fit my body and shooting stance better than any other stock on the market. Highly recommend this to anyone looking to upgrade their AR or building a new one...
Read More...
Helpful Positive Review
Rock me to the GL-CORE by AZ Dave, Verified Owner, February 17, 2025
The FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock is my absolute favorite. It has a nice flat rubberized pad that works perfectly with my rear bag. A wide cheek weld easily allows you to line up shots consistently. I'll take a small weight pe...
Read More...
1/1 found this helpful
Helpful Positive Review
AR upgrade by Population control specialist, Verified Owner, June 24, 2025
This upgrade was well worth the price. The cheek placement now feels correct.
1/1 found this helpful
Helpful Positive Review
Magpul Who?? by digger dogg, Verified Owner, February 6, 2020
I have been a big fan of the magpul str stock for years due to its extra cheek weld, but they are still a little loose on a milspec buffer so I get some rattle. this has zero play. makes it a little hard to slide back and forth quickly. not a issu...
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39/40 found this helpful
Helpful Positive Review
Game changer by David Craig, Verified Owner, April 13, 2024
Swapped out the cheap plastic stock with this. I wasn’t sure about if mine was mil-spec or commercial buffer tube. Turns out the mil-spec installed on the stock was correct and it’s got a nice fit many to it. No wiggle hardly at all. Love the rubber...
Read More...
2/2 found this helpful
Helpful Positive Review
FAB Defense Butt Stock by HardKnox, Verified Owner, April 16, 2024
This is a great upgrade over the standard Mil-Spec stock that came on my rifle. It fits very snug on the buffer tube and looks super cool. Very pleased with this purchase.
1/1 found this helpful
Read All 135 Reviews
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Product Info for FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes

If you're seeking a high-quality rifle buttstock with Mil-Spec or Commercial buffer tubes, then you need to pick up the FAB Defense GL-Core AR15/M4 Skeleton Style Buttstock. Equipping your firearm with these AR15 Stocks by FAB Defense gives you a durable back end with an integrated cheek weld in a compact and sleek design. Safe and secure, the inverse positioning lever will not accidentally open on the FAB Defense AR15/M4 Buttstock for Mil-Spec and Commercial Tubes. The FAB Defense GL-Core Tactical Skeleton Style Buttstock features an ergonomically shaped rubberized butt-pad, so you'll be able to quickly shoulder and easily maneuver your weapon in the field. Get yours today to experience how FAB Defense can significantly improve your rifle.image

Specifications for FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes:

Manufacturer: FAB Defense
Gun Model: M4, AR-15
Gun Type: Rifle
Weight: 0.597 lb
Length: 7.09 in
Condition: New
Buffer Tube Size: Commercial or MIL-Spec
Width: 2.05 in
Height: 5.16 in

Features of FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes:

  • Ergonomically shaped rubberized butt-pad for quick shouldering and easy maneuvering of the weapon.
  • Interchangeable buffer tube adapters for a tight fit on Mil-Spec and Commercial buffer tubes.
  • Integrated cheek weld in an overall compact and sleek design.
  • No protruding parts, will not get caught on gear or webbing.
  • Inversed positioning lever will not open accidentally.
  • Two integrated quick detach rear sling swivel connectors.
  • Made of durable and light-weight fiberglass reinforced polymer composite.

Package Contents:

  • FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes

What firearm models does the manufacturer say FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes is compatible with?

The manufacturer says that FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes is compatible with AR-15, M4

FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes Orderable Models

List of Orderable Models

  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG-KIT1 , MPN: FX-GLCOREG-KIT1 , Code: 1S0-BSC-ARSK-FX-GLCOREG-KIT1
  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB , MPN: fx-glcoreb , UPC: 7290105944757 , Code: 1S0-BSC-ARSK-FX-GLCOREB
  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET , MPN: fx-glcoret , UPC: 7290105945976 , Code: 1S0-BSC-ARSK-FX-GLCORET
  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG , MPN: fx-glcoreg , UPC: 7290105945969 , Code: 1S0-BSC-ARSK-FX-GLCOREG

FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, GL-Core, FX-GLCOREB-DEMO , MPN: FX-GLCOREB-DEMO , Code: 1S0-BSC-ARSK-FX-GLCOREB-DEMO
  • DEMO, FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, OD Green, FX-GLCOREG , MPN: FX-GLCOREG-DEMO , Code: 1S0-BSC-ARSK-FX-GLCOREG-DEMO
  • FAB Defense OPMOD AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tube, Grey , MPN: FX-GLCOREB-OPMOD Grey-KIT2023 , Code: 1S0-BSC-ARSK-FX-GLCOREB-OPMOD-Grey-KIT2023
  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, GL-Core-FDE , MPN: GL-Core-FDE , Code: 1S0-BSC-ARSK-CORE-FDE
  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Flat Dark Earth, FX-GLCORET-KIT1 , MPN: FX-GLCORET-KIT1 , Code: 1S0-BSC-ARSK-FX-GLCORET-KIT1
  • FAB Defense AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes, Black, FX-GLCOREB-KIT2 , MPN: FX-GLCOREB-KIT2 , Code: 1S0-BSC-ARSK-FX-GLCOREB-KIT2
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