FAB Defense GL-CORE AR15/M4 Buttstock Mil-Spec Commercial FDE

The FAB Defense GL-CORE AR15/M4 Buttstock delivers enhanced stability and comfort through its innovative cheek riser system and dual-tube compatibility. This Flat Dark Earth buttstock transforms standard carbine platforms into precision-oriented rifles while maintaining full compatibility with existing buffer systems.

What Makes This Different

The GL-CORE features an integrated adjustable cheek riser that provides consistent sight alignment across various optic heights, eliminating the need for separate accessories. Unlike fixed buttstocks, this design accommodates both mil-spec and commercial buffer tubes without requiring different models. The ergonomic grip angle reduces wrist strain during extended shooting sessions while the textured surface ensures positive control in adverse conditions.

Key Features

• Adjustable cheek riser with multiple height positions for optic alignment
• Universal compatibility with mil-spec (1.148" diameter) and commercial (1.168" diameter) buffer tubes
• Reinforced polymer construction with glass-filled nylon for impact resistance
• Textured grip surfaces and anti-slip buttpad for secure shouldering
• Quick-detach sling swivel attachment points on both sides
• Storage compartment in buttstock body for cleaning kit or batteries
• Flat Dark Earth finish matches standard military color specifications

Field performance demonstrates the GL-CORE's versatility across multiple shooting disciplines. The adjustable cheek piece maintains proper scope eye relief whether using low-profile red dots or high-magnification optics. Competition shooters benefit from the consistent cheek weld, while tactical applications leverage the dual sling attachment options for weapon retention. The reinforced polymer withstands temperature extremes from -40°F to 140°F without dimensional changes.

Technical Specs

• Overall length: 9.5 inches (extended position)
• Weight: 1.2 pounds
• Material: Glass-filled reinforced polymer
• Finish: Flat Dark Earth (FDE) cerakote-style coating
• Buffer tube compatibility: Mil-spec and commercial diameter
• Cheek riser adjustment: 4 height positions
• Sling attachment: QD swivel compatible
• Country of origin: Israel
• Manufacturer warranty: Limited lifetime against defects

The GL-CORE represents FAB Defense's commitment to modular weapon systems that adapt to mission requirements rather than forcing compromises. Professional users and civilian shooters gain a single buttstock solution that eliminates the guesswork in buffer tube compatibility while providing precision-rifle features at carbine weight.