
Availability: In Stock
The Fab Defense GL-CORE M CP is an adjustable AR-15 buttstock built for shooters who want practical features without extra bulk. This mil-spec and commercial tube-compatible stock combines a sleek, snag-free profile with an integrated magazine carrier, giving you immediate access to a spare 5.56x45 magazine during training, competition, or field work. The anti-rattle mechanism keeps everything locked down on your buffer tube, and the rubber butt-pad resists slip and absorbs recoil naturally—exactly what you need when precision matters.
What sets the CORE M CP apart is the concealed magazine carrier that holds standard AR-15, M16, M4, and FAB Defense Ultimag magazines without adding weight or changing how the stock seats on your shoulder. The quick-release button makes mag swaps fast when you need them, while ambidextrous QD sling swivel connectors keep your setup adaptable. Built from fiberglass-reinforced polymer composite, it's tough enough for hard use without unnecessary weight.
Whether you're running a precision rifle, a duty-style AR, or a trainer, the adjustable cheek piece lets you dial in a consistent sight picture across optics. The low-profile design means no snag points on your gear, body armor, or sling—it moves with you, not against you. Fits both mil-spec and commercial buffer tubes, so retrofitting an existing rifle is straightforward.
| Brand | F.A.B. Defense |
| Model | GL-CORE M CP |
| Color | Black |
| Tube Compatibility | Mil-Spec and Commercial |
| Magazine Compatibility | Standard AR-15/M16/M4 5.56x45 (.223 Rem), FAB Defense Ultimag |
| Material | Fiberglass-reinforced polymer composite |
| Features | Adjustable cheek rest, integrated magazine carrier, anti-rattle mechanism, quick-release magazine button, ambidextrous QD sling swivel connectors |
Yes. The GL-CORE M CP is compatible with both mil-spec and commercial buffer tubes, so it will work on most standard AR-15 platforms.
The integrated magazine carrier accommodates standard AR-15, M16, and M4 magazines in 5.56x45 (.223 Rem), as well as FAB Defense Ultimag magazines.
Yes. The stock features an adjustable cheek piece, allowing you to tailor your sight picture and cheek weld for different optics and shooting positions.
The stock is equipped with integrated ambidextrous quick-detach rear sling swivel connectors, so you can attach a two-point or single-point sling directly to the stock.

SKU: 126512959 • Width: 6.2in • Height: 3.1in • Depth: 9.3in • Weight: 1.32oz





Availability: In Stock
The Fab Defense GL-CORE M CP is an adjustable AR-15 buttstock built for shooters who want practical features without extra bulk. This mil-spec and commercial tube-compatible stock combines a sleek, snag-free profile with an integrated magazine carrier, giving you immediate access to a spare 5.56x45 magazine during training, competition, or field work. The anti-rattle mechanism keeps everything locked down on your buffer tube, and the rubber butt-pad resists slip and absorbs recoil naturally—exactly what you need when precision matters.
What sets the CORE M CP apart is the concealed magazine carrier that holds standard AR-15, M16, M4, and FAB Defense Ultimag magazines without adding weight or changing how the stock seats on your shoulder. The quick-release button makes mag swaps fast when you need them, while ambidextrous QD sling swivel connectors keep your setup adaptable. Built from fiberglass-reinforced polymer composite, it's tough enough for hard use without unnecessary weight.
Whether you're running a precision rifle, a duty-style AR, or a trainer, the adjustable cheek piece lets you dial in a consistent sight picture across optics. The low-profile design means no snag points on your gear, body armor, or sling—it moves with you, not against you. Fits both mil-spec and commercial buffer tubes, so retrofitting an existing rifle is straightforward.
| Brand | F.A.B. Defense |
| Model | GL-CORE M CP |
| Color | Black |
| Tube Compatibility | Mil-Spec and Commercial |
| Magazine Compatibility | Standard AR-15/M16/M4 5.56x45 (.223 Rem), FAB Defense Ultimag |
| Material | Fiberglass-reinforced polymer composite |
| Features | Adjustable cheek rest, integrated magazine carrier, anti-rattle mechanism, quick-release magazine button, ambidextrous QD sling swivel connectors |
Yes. The GL-CORE M CP is compatible with both mil-spec and commercial buffer tubes, so it will work on most standard AR-15 platforms.
The integrated magazine carrier accommodates standard AR-15, M16, and M4 magazines in 5.56x45 (.223 Rem), as well as FAB Defense Ultimag magazines.
Yes. The stock features an adjustable cheek piece, allowing you to tailor your sight picture and cheek weld for different optics and shooting positions.
The stock is equipped with integrated ambidextrous quick-detach rear sling swivel connectors, so you can attach a two-point or single-point sling directly to the stock.

SKU: 126512959 • Width: 6.2in • Height: 3.1in • Depth: 9.3in • Weight: 1.32oz