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FAB Defense GLSHOCK AR-15/M16/M4 Recoil Reducing Stock Polymer
As Low As $55.49 Save Up to 49%
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Most Helpful Positive Review Great Stock
I’m running this on a 450 Bushmaster and the difference is beyond words. If you are running anything more than 223 you need this buffered stock. Look fit and finish are all very high end. Before the stock I could shoot 4-5 rounds of 450 now I can shoot all I can afford!
Most Helpful Negative Review False advertising but decent stock
-1st off, I received this "recoil reducing" stock today and found zero indicators that prove this stock helps eliminate recoil. This item receives 1 star for selling under false pretenses. *someone please challenge me on how this stock reduces recoil in anyway* -aside from false advertising, not a...
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FAB Defense GLSHOCK car stock

by Jimmy C, Verified Owner from NC, United States Written on April 9, 2026
I love the look and feel of this OD Green stock. It matches well with my OD Green Magpul MOE M-loc handguards and B5 LS2 grip. It was a little tricky getting it started on my mil spec buffer tube,and it has some excessive vertical movement,no matter its position on the tube. Its a little tight when changing positions, but its manageable. The butt plate is somewhat difficult for me to remove, but it slides back on with on problems. Once the butt plate is removed, there's a small cover to remove with an o ring seal on it to gain access to the storage compartment. The lever used to slide the stock is nice and snug with no rattles. But with the stock being a little tight on the tube,my hand wants to slip off of the front of the lever when moving the stock from the rear to any forward positions. This, the butt plate issue,and the vertical movement are my biggest complaints with it. But they aren't deal breakers. The price is a little steep for me,but its doable. I haven't fired the rifle yet to confirm if it reduces felt recoil or not.
Pros:
  • great looking, storage, nothing to hang on clothing.
Cons:
  • A little pricey, hard to get started onto buffer tube, butt plate is hard to remove, some vertical movement.
Would recommend: Yes
Was it helpful to you? Yes | No

This GLShock is well made

by Persister, Verified Owner from TX, United States Written on March 8, 2026
This GLShock is well made. I would recommend this stock.
Would recommend: Yes
Was it helpful to you? Yes | No

New stock and grip

by Fitch, Verified Owner from OR, United States Written on February 21, 2026
Great options to choose from fast and precise delivery. I would purchase again from them.
Would recommend: Yes
Was it helpful to you? Yes | No

FAB Defense GLSHOCK

by Sferg, from NC, United States Written on February 12, 2026
A little tricky to install but fit great on my PSA-15. Very snug ..No rattles. Does offer some recoil reduction as advertised! I like!
Would recommend: Yes
Was it helpful to you? Yes | No

Great company

by Thomas Green, Verified Owner from KY, United States Written on January 26, 2026
A Great place to shop for your firearm needs & ammo.
Will buy from them again.
They do a great job. & fast shipping.
Thanks
Pros:
  • None
Cons:
  • None
Best Used for:
  • firearm parrts & ammo
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

installed on .50 beowolf

by jram, from OH, United States Written on October 29, 2025
Overall decent stock, a little loose, it has a wee bit too much rattle. But if you can ignore that it functions well.
Would recommend: Yes
Was it helpful to you? Yes | No

Works As Advertised

by Rodman 5.45, Verified Owner from KY, United States Written on August 31, 2025
Significant recoil reduction, my second purchase. Works well on .308 and .12 gauge.
Would recommend: Yes
Was it helpful to you? Yes | No

Fab stock , very nice!

by Murray, Verified Owner from OK, United States Written on June 14, 2025
This is a sweet buttock when I combined it with the cheek riser. It’s exactly what I needed like the OD color very practical at a good price.
Would recommend: Yes
Was it helpful to you? Yes | No

Very well made

by Jesse O, Verified Owner from AZ, United States Written on February 11, 2025
Ordered this to help with recoil on my SFAR. Kudos to Optics Planet for the fast shipping. Very well made stock, fits snug with no rattle. This stock really helps to turn a punch into a push.
Pros:
  • GREAT PRICE
  • Very well made
  • Works as advertised
Cons:
  • None
Best Used for:
  • Larger calibers
Would recommend: Yes
Was it helpful to you? Yes | No

Great for the price, and bonus

by Woody, Verified Owner from TX, United States Written on February 9, 2025
Nice rubber pad, intuitive adjustment, and moderately snug fit. For the price a great stock. But including the shock absorbing feature and it a a no brainer. Works well, but even better after a dry powder lube is added to the buff tube.
Pros:
  • Looks great
  • Good fit
  • Easy instal
  • qd
  • Great quaility
  • Small storage space
  • rubber pad is grippy
  • shock absorb works well
Cons:
  • None
Best Used for:
  • Everyone
  • 300 AAC Blackout
Would recommend: Yes
Was it helpful to you? Yes | No
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