FAB Defense GL-SHOCK AR15/M16 Shock Absorbing Butt-Stock

4.00 out of 5
(2 customer reviews)

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About the FAB Defense GL-SHOCK AR15/M16 Shock Absorbing Butt-Stock:

The GL-SHOCK shock absorbing stock contains a recoil-reducing mechanism with a built-in premium silicon chrome alloy spring creating a State-of-the-Art stock for your AR15/M16/M4. The GL-SHOCK AR15 Stock has a unique Anti-Rattle mechanism that holds the stock firmly in place on your AR15 tube eliminating any unnecessary rattle, furthermore the butt-stocks butt-pad is made out of a high-quality rubber to prevent it from slipping while shooting and enhancing the grip on the shooter's shoulder. The stock also has a watertight battery compartment for two CR123A batteries.

Another great feature that the GL-SHOCK AR15 stock has is that the butt-pad is interchangeable, FAB Defense offers four different butt-pads:
The normal one that comes by default on the GL-SHOCK,
the ARP - Rubberized Assault Butt-Pad,
the SRP - Rubberized Sniper Butt-Pad
and the MBA - Mono-Pod Butt-Stock Add-On.

Butt-Pad Assembly Instructions



  • Provides additional support for more steady hold and extremely accurate shooting
  • Secure retaining mechanism prevents accidental deployment
  • Easily deployed and retracted into the buttstock by the push of a button
  • Top-quality rubber foot for enhanced grip on slippery surfaces  
  • Two-stage screw and spring based extension for rapid deployment and fine adjustment
  • Made of reinforced high-grade polymer composite and 6061 hard anodized aluminum

Butt-Stock Assembly


Color Reference:

It might be, that the colors of the product may change when selection or adding different variations. This might happen due to different lighting when the product was photographed with that specific variation.

Here we added a picture of each color that in our opinion is as close as possible to the original color. 
*Colors might look different in different screens.



About FAB Defense:

FAB Defense LOGO

Since its foundation, FAB-Defense has been leading in development and manufacture of the highest quality tactical equipment and weapon accessories for Israel’s Military and Police. Because FAB-Defense works in collaboration with Special Forces and SWAT teams worldwide. 

Furthermore the State-of the-Art engineering, manufacturing and quality assurance methods are joined into leading technologies ensuring the products produced exceed even the most strict industry standards. In addition FAB Defense products are thoroughly tested in the harshest environments and under extreme conditions. Conditions that include freezing snow and scorching deserts by some of the best tactical units in the world. FAB unique production standards are first and foremost led by operational field experience, leading the way in tactical accessory operation.

Commercial Tube
304 g
43 mm
130 mm
180 mm

Additional information

Weight 304 g
Dimensions 180 × 43 × 130 mm

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Country of Manufacture




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2 reviews for FAB Defense GL-SHOCK AR15/M16 Shock Absorbing Butt-Stock

  1. 3 out of 5

    Don Evans

    I love the way the unit attaches to the gun. However my only problem is that once extended, any strong pressure on the rear end causes the buttstock to slide forward??

  2. 5 out of 5

    Harry Moto

    I use mine on my tactical stock 12 gauge and on my modular rifle in 7.62×51; both accept AR style stocks. When shooting the shotgun, you learn to loosen your grip on the weapon and let it move. Recoil is reduced to the point that you aren’t aware of it. Shooting 48 rounds minimum, I get beat up a little bit without the GL-Shock. With it, the worst that happens is that I get the giggles. It’s like shooting a 22LR instead of a 12 gauge. Results on my 7.62×51 are similar. I know the rifle, I know what to expect, but with the Fab Defense butt-stock it doesn’t happen. I get to laughing and bang away, basically no effective recoil. Love it!! 8^)

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