FAB Defense GL-Core Adjustable Cheek Rest - Matte Black Synthetic for AR-PlatformF.A.B. Defense$85.30
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F.A.B. Defense
The FAB Defense GL-Core adjustable cheek rest brings ergonomic rifle control to AR-platform shooters who demand a solid cheek weld across different optic setups. Built from lightweight fiberglass-reinforced polymer, this flat dark earth synthetic stock combines a shaped rubberized buttpad with an adjustable cheek rest that positions your face consistently behind red dots, scopes, and holographic sights—critical for accuracy at distance and speed on the range or in the field.
What sets the GL-Core apart is its thoughtful engineering: interchangeable buffer tube adapters lock the stock securely onto both Mil-Spec and Commercial tubes without wobble, while the compact, snag-free profile won't catch on body armor, kit, or vehicle interior. The integrated cheek weld gives you repeatable cheek-to-stock contact without bulk, and the adjustable cheek-rest design lets you fine-tune your sight picture whether you're running a 1x prism, a low-power variable, or a traditional scope.
The lever-locking mechanism sits inverted so it won't accidentally deploy under recoil or handling. Two QD rear sling swivel connectors built into the stock mean you're ready for field carry without additional hardware. Shooters setting up a precision AR, a dedicated competition build, or a hunting rifle that demands consistent shooting form will appreciate the attention to ergonomics and durability here.
| Brand | FAB Defense |
| Model | GL-Core |
| Color | Flat Dark Earth |
| Material | Fiberglass-reinforced polymer composite |
| Buffer Tube Compatibility | Mil-Spec and Commercial |
| Cheek Rest Positions | Three adjustable positions |
| Sling Connectors | Two QD rear swivel connectors |
Yes. The interchangeable buffer tube adapters are designed to secure the stock on both Mil-Spec and Commercial buffer tubes, which are the standard AR-platform configurations.
The GL-Core's adjustable cheek-rest design supports different optics and sight types. You can position it across three different heights to dial in your cheek weld for your specific setup, whether that's a red dot, holographic sight, or scope.
The two quick-detach rear sling swivel connectors are built into the stock, eliminating the need for separate hardware and giving you immediate field-ready carry options without adding bulk or weight.
The ergonomically shaped rubberized buttpad is designed for quick shouldering and comfortable contact during handling and firing. The lightweight composite material keeps felt recoil manageable compared to heavier alternatives.
F.A.B. Defense
The FAB Defense GL-Core adjustable cheek rest brings ergonomic rifle control to AR-platform shooters who demand a solid cheek weld across different optic setups. Built from lightweight fiberglass-reinforced polymer, this flat dark earth synthetic stock combines a shaped rubberized buttpad with an adjustable cheek rest that positions your face consistently behind red dots, scopes, and holographic sights—critical for accuracy at distance and speed on the range or in the field.
What sets the GL-Core apart is its thoughtful engineering: interchangeable buffer tube adapters lock the stock securely onto both Mil-Spec and Commercial tubes without wobble, while the compact, snag-free profile won't catch on body armor, kit, or vehicle interior. The integrated cheek weld gives you repeatable cheek-to-stock contact without bulk, and the adjustable cheek-rest design lets you fine-tune your sight picture whether you're running a 1x prism, a low-power variable, or a traditional scope.
The lever-locking mechanism sits inverted so it won't accidentally deploy under recoil or handling. Two QD rear sling swivel connectors built into the stock mean you're ready for field carry without additional hardware. Shooters setting up a precision AR, a dedicated competition build, or a hunting rifle that demands consistent shooting form will appreciate the attention to ergonomics and durability here.
| Brand | FAB Defense |
| Model | GL-Core |
| Color | Flat Dark Earth |
| Material | Fiberglass-reinforced polymer composite |
| Buffer Tube Compatibility | Mil-Spec and Commercial |
| Cheek Rest Positions | Three adjustable positions |
| Sling Connectors | Two QD rear swivel connectors |
Yes. The interchangeable buffer tube adapters are designed to secure the stock on both Mil-Spec and Commercial buffer tubes, which are the standard AR-platform configurations.
The GL-Core's adjustable cheek-rest design supports different optics and sight types. You can position it across three different heights to dial in your cheek weld for your specific setup, whether that's a red dot, holographic sight, or scope.
The two quick-detach rear sling swivel connectors are built into the stock, eliminating the need for separate hardware and giving you immediate field-ready carry options without adding bulk or weight.
The ergonomically shaped rubberized buttpad is designed for quick shouldering and comfortable contact during handling and firing. The lightweight composite material keeps felt recoil manageable compared to heavier alternatives.