Fab Defense GL-CORE M CP Adjustable AR-15 Buttstock (Mil/Com) - Black

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.

Key Features

• Fits mil-spec and commercial AR-15 buffer tubes
• Built-in concealed magazine carrier for standard 5.56x45 and FAB Defense magazines
• Anti-rattle mechanism eliminates wobble on the tube
• Adjustable cheek rest for optics and sight alignment
• Ambidextrous quick-detach sling swivel connectors
• Quick-release button for fast magazine changes
• High-quality rubber butt-pad resists slip and manages recoil
• Fiberglass-reinforced polymer composite construction
• Sleek, snag-free profile with no protruding parts

Specifications

Frequently Asked Questions

Will this stock fit my AR-15 buffer tube?

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.

What magazines does the built-in carrier hold?

The integrated magazine carrier accommodates standard AR-15, M16, and M4 magazines in 5.56x45 (.223 Rem), as well as FAB Defense Ultimag magazines.

Can I adjust the cheek rest?

Yes. The stock features an adjustable cheek piece, allowing you to tailor your sight picture and cheek weld for different optics and shooting positions.

Does this stock come with sling attachment points?

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.