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Reviews & Ratings for FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes — 129 reviews

(129 reviews)
FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes
FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes
As Low As $45.04 Save Up to 36%
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Expert Review

Favorite Stock On Any Rifle

by Andrew, Gear Expert from IL, United States Written on 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.
Most Helpful Positive Review Magpul Who??
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 issue for me I set and forget. I'm sure will get a lit...
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Most Helpful Negative Review GL-Core buttstock w/cheek riser
Unfortunately this product let me down after I watched some good reviews on it and waited around two months to get it. Switching from the commercial to mil-spec buffer tube pieces literally look me around an hour of fighting with it and watching a tutorial on how to do it since it came with no instr...
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Solid product!

by Mister 313rd, Verified Owner from MI, United States Written on October 28, 2025
I’ve been searching a while for a but stock for my AR build, the stock plastic M4 one is so ugly and uncomfortable. I have a commercial tube, so it’s not the easiest to find one that fits the bill. Thanks to you guys, I’ve found the perfect one.
Would recommend: Yes
Was it helpful to you? Yes | No
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works great.

by dta, Verified Owner from MI, United States Written on October 26, 2025
I needed a commercial buttstock with QD for my AR. This fit the bill just fine.
Would recommend: Yes
Was it helpful to you? Yes | No
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Fits perfect, looks great!

by James Trevino, Verified Owner from TX, United States Written on October 3, 2025
Just added the FAB Buttstock, and it looks better than expected. Great price, looks good and adjusts easily and smoothly
Would recommend: Yes
Was it helpful to you? Yes | No
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My New Favorite

by Badger, from TX, United States Written on August 10, 2025
For many years I purchased Magpul stocks and grips for my AR platforms.
About a year ago, I purchased the GL Core stock and the Gradus rubberized grip
For my AR. I have come to really like these stocks and grips, so much so that I now use them
on all my AR style platforms.
Would recommend: Yes
Was it helpful to you? Yes | No
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Ar butt stock

by Shootinstuff, Verified Owner from MO, United States Written on July 19, 2025
The original stock was loose and rattled. This stock does not rattle fits tight does what it’s suppose to.
Pros:
  • Solid no rattle
Cons:
  • None
Best Used for:
  • AR Platform
Would recommend: Yes
Was it helpful to you? Yes | No
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GL-CORE AR-15/M4 Skeleton Style Buttstock For Mil-Spec/Commercial Tubes

by Jaycat, Verified Owner from NV, United States Written on July 11, 2025
Fits very secure but still adjusts very easily. No shaking or unwanted movement while shooting. Fit into and grips well in the shoulder. Slips on the buffer tube easier than most stocks
Pros:
  • Very secure
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Fab Defense GL Core

by Brian Howard, from NC, United States Written on July 4, 2025
I wasn't sure if I was going to like this stock but after shooting with it I love it. It fits in my shoulder pocket very nice and it doesn't "dig" into my shoulder painfully. I wanted something different but not way out there.The fde in the pics look darker....it is actually the perfect color to match other fde on my rifle. Very happy with this purchase.
Best Used for:
  • Run & Gun
Would recommend: Yes
Was it helpful to you? Yes | No
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AR upgrade

by Population control specialist, Verified Owner from KS, United States Written on June 24, 2025
This upgrade was well worth the price. The cheek placement now feels correct.
Best Used for:
  • hunting
Would recommend: Yes
1 of 1 found the following review helpful.
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GL-CORE AR-15/M4 Skeleton Style Buttstock

by Ziimo, Verified Owner from MI, United States Written on May 22, 2025
Really liking these FAB Defense Buttstocks! There built super tough and are extremely comfortable when shouldered.
Pros:
  • very sturdy
  • Tight fit
Cons:
  • none so far
Would recommend: Yes
Was it helpful to you? Yes | No
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Fit and finish

by Bax, Verified Owner from VA, United States Written on May 15, 2025
This stock is nice and tight and gets rid of the rattle I had with a mil spec MOE. Installation takes less than a minute and it looks great!
Would recommend: Yes
Was it helpful to you? Yes | No
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