The FAB Defense GL-Core Survival Buttstock (brand part number FXGLCOREMAGB) adds a concealed magazine carrier directly into an AR-15/M16/M4 buttstock, holding one standard 5.56x45mm (.223 Rem) AR magazine or FAB Defense Ultimag magazine ready for a fast reload. Built in black polymer to fit both mil-spec and commercial buffer tubes (tube not included), the GL-Core M uses an anti-rattle mechanism that locks the stock firmly to the tube and eliminates the loose, rattly feel common on aftermarket stocks. A high-quality rubber butt pad keeps the stock from slipping on the shoulder during recoil while improving cheek weld comfort.

Key Specifications

• Includes a built-in concealed magazine carrier that holds one standard AR-15/M16/M4 magazine.
• Accommodates standard 5.56x45mm (.223 Rem) AR magazines and FAB Defense Ultimag magazines.
• Uses an Anti-Rattle mechanism to lock the stock firmly to the buffer tube.
• Finished with a rubber butt pad to reduce slipping and improve shoulder grip.
• Fits both mil-spec and commercial buffer tubes (tube not included).
• Molded from durable black polymer for a lightweight, rugged build.

Frequently Asked Questions

How many magazines does the carrier hold? It holds one standard 5.56x45mm (.223 Rem) AR-15/M16/M4 magazine or FAB Defense Ultimag magazine.

Does this stock fit my buffer tube? It’s built to fit both mil-spec and commercial buffer tubes, though the tube itself is not included.

What does the Anti-Rattle mechanism do? It locks the stock firmly onto the buffer tube, eliminating the loose rattle common on many aftermarket stocks.

Buy the FAB Defense GL-Core Survival Buttstock with Built-In Magazine Carrier

Keep a spare magazine on the gun and ready without adding a separate pouch. Order this FAB Defense stock, part of our full rifle stocks selection, from our Lubbock, Texas gun shop for fast, direct shipping.