Elevating Your AR-15/M16/M4 Platform: The FAB Defense GLR-16 Buttstock with Patented Anti-Rattle & Integrated Storage

For serious shooters, tactical professionals, competitive marksmen, and firearm enthusiasts, optimizing your AR-15, M16, or M4 platform is not just about power – it's about precision, reliability, and comfort. A crucial component in achieving this trifecta is the buttstock. If you've ever experienced the annoyance of a wobbly stock, the frustration of fumbling for spare batteries, or the discomfort of an ill-fitting buttpad, then the FAB Defense GLR-16 Buttstock is engineered precisely to solve these common challenges.

Designed to enhance versatility, stability, and utility, the GLR-16 offers a significant upgrade over standard buttstocks, transforming your rifle into a more ergonomic and dependable tool. This robust accessory isn't just about aesthetics; it's about delivering tangible performance benefits in every scenario, from intense training sessions to critical field operations.

The Core Problem Solved: Unwavering Stability with Patented Anti-Rattle Technology

One of the most persistent issues faced by AR platform owners is the "play" or wobble often found in adjustable buttstocks. This seemingly minor issue can have significant implications:

• Degraded Accuracy: Any movement in the stock can subtly shift your point of aim, compromising shot consistency, especially at longer ranges or during rapid fire.
• Distracting Noise: A rattling stock can be a significant distraction, particularly in quiet environments or tactical situations where stealth is paramount.
• Reduced Confidence: A flimsy-feeling stock undermines the perceived quality and reliability of your firearm.

The FAB Defense GLR-16 directly confronts this problem with its unique, patented "Anti-Rattle" mechanism. This ingenious design ensures an exceptionally snug and secure fit on both MIL-SPEC and commercial buffer tubes. Unlike many aftermarket stocks that may leave a slight gap or exhibit unwanted movement, the GLR-16 locks down firmly, creating a unified and stable platform.

How does this translate to real-world performance? Imagine transitioning between targets rapidly; with the GLR-16, your shoulder weld remains consistent, providing immediate feedback and allowing for quicker, more accurate follow-up shots. For precision shooting, the elimination of wobble means your focus stays on the reticle and trigger control, not on managing an unstable stock. This level of stability is not just a luxury; it's a necessity for anyone who demands peak performance from their firearm.

Ergonomics, Comfort, and Rapid Shoulder Positioning

Beyond stability, user comfort and efficient weapon manipulation are paramount. The GLR-16 features a uniquely designed rubber butt pad, engineered not just for comfort but for incredibly fast and stable shoulder positioning.

The textured, non-slip surface of the butt pad ensures a firm purchase against your shoulder, preventing slippage during recoil or dynamic movement. This contributes significantly to recoil absorption, distributing the force more effectively and reducing felt recoil, which in turn leads to less shooter fatigue over extended periods of use. Whether you're spending hours at the range or need to maintain a shooting stance for prolonged periods, the comfort provided by this butt pad is invaluable.

Furthermore, its ergonomic contour is optimized for swift shouldering. This is critical for tactical applications, competitive shooting, or even hunting scenarios where rapid target acquisition can mean the difference between success and failure. The ability to quickly and consistently bring the rifle to bear, combined with the stable foundation provided by the anti-rattle mechanism, empowers the user with superior control and confidence.

Integrated, Water-Resistant Storage for Essential Gear

Modern firearms often rely on optics, lights, and lasers, all of which require power. Running out of battery life in a critical moment is not an option. The FAB Defense GLR-16 addresses this with a cleverly integrated, water-resistant storage compartment.

This internal compartment is specifically designed to securely hold two CR123 or AA batteries. This is a game-changer for maintaining operational readiness.

• CR123 Batteries: Widely used in weapon-mounted lights, red dot sights, and tactical optics, having spare CR123s on hand ensures your illuminated reticle or tactical flashlight won't unexpectedly die.
• AA Batteries: Common for many general-purpose lights, night vision devices, and various electronic accessories, AA batteries offer a versatile backup power source.

The "water-resistant" designation means that your critical power supply is protected from moisture, humidity, and incidental splashes, safeguarding them even in adverse weather conditions. The anti-rattle design of the compartment itself ensures the batteries are held firmly in place, preventing them from rattling around and creating unwanted noise. This thoughtful inclusion eliminates the need for external battery pouches or cumbersome storage solutions, keeping your essential spare power discreetly and reliably within your rifle's footprint.

Durable Construction and Versatile Sling Attachment Points

The GLR-16 buttstock is built to withstand the rigors of demanding environments. Crafted from fiberglass reinforced polymer composite, it strikes an ideal balance between lightweight design and exceptional durability. This advanced material provides:

• High Impact Resistance: Capable of shrugging off bumps, drops, and impacts that would compromise lesser materials.
• Temperature Stability: Performs reliably across a wide range of temperatures, from extreme cold to intense heat.
• Corrosion Resistance: Impervious to rust and common solvents, ensuring longevity and consistent performance with minimal maintenance.

The matte black finish not only gives it a sleek, professional appearance but also reduces glare, which is important in tactical or hunting situations.

For effective weapon retention and transition, proper sling attachment points are essential. The GLR-16 features three integrated slots for sling attachment, offering maximum versatility to accommodate various sling configurations and user preferences:

• One in the Front: Positioned conveniently for traditional two-point sling setups or to provide a balance point for single-point slings.
• Two at the Rear: These points offer flexibility for both two-point and single-point sling attachments, allowing users to fine-tune their carry method for optimal comfort and rapid deployment.

This multi-directional sling attachment capability ensures that whether you prefer a quick-detach (QD) swivel (often attachable via an adapter to these slots, depending on your sling system) or a more traditional loop, the GLR-16 can accommodate your needs, enhancing weapon retention and operational readiness.

Compatibility and Seamless Integration

A key consideration for any AR accessory is compatibility. The FAB Defense GLR-16 Buttstock is engineered to fit perfectly on both MIL-SPEC and commercial aftermarket buffer tubes. This broad compatibility ensures that a vast majority of AR-15, M16, and M4 owners can easily integrate this upgrade into their existing platforms without needing specialized adapters or modifications.

Whether you're building a new rifle, upgrading an existing one, or simply looking for a more stable and functional stock, the GLR-16's universal fit (for standard buffer tube sizes) makes it a reliable choice. Its straightforward design ensures relatively simple installation, allowing users to quickly enhance their firearm's capabilities.

Why Choose the FAB Defense GLR-16 Buttstock?

When evaluating buttstock options, the FAB Defense GLR-16 stands out due to its thoughtful design and practical features, directly addressing the needs of discerning firearm owners:

• Unrivaled Stability: The patented Anti-Rattle mechanism is a defining feature, eliminating frustrating stock wobble and providing a solid platform for improved accuracy and faster target acquisition. This is a critical advantage for precision shooting and dynamic drills.
• Enhanced Ergonomics: The uniquely designed rubber butt pad offers superior comfort, reduces felt recoil, and facilitates rapid and consistent shouldering, boosting shooter confidence and reducing fatigue during extended use.
• Integrated Power Management: The secure, water-resistant storage compartment for two CR123 or AA batteries ensures that essential optics, lights, and other electronic accessories remain powered, eliminating concerns about unexpected battery depletion in the field.
• Robust Durability: Constructed from high-strength fiberglass reinforced polymer composite, the GLR-16 is built to last, offering excellent resistance to impact, temperature extremes, and environmental wear.
• Versatile Sling Options: Three integrated sling attachment slots provide ample choices for various carry methods, enhancing weapon retention and allowing for quick transitions.
• Broad Compatibility: Its design ensures a perfect fit on both MIL-SPEC and commercial buffer tubes, making it a versatile upgrade for nearly any AR-15, M16, or M4 rifle.
• Optimized Performance: Every feature, from the anti-rattle mechanism to the butt pad and storage, contributes to an overall enhanced shooting experience, making your firearm more reliable, comfortable, and efficient.

For those asking, "What's the best way to upgrade my AR-15's stability and add practical storage?" or "How can I reduce stock wobble on my M4?", the FAB Defense GLR-16 provides a comprehensive and highly effective answer. It's not just a replacement part; it's an investment in your firearm's performance and your shooting proficiency. Available from reputable dealers such as DEGuns, this buttstock is a testament to quality and innovation in firearm accessories.

Key Specifications and Details

Feature	Detail	UPC
Brand	FAB Defense	7290105940681
Model Name	GLR-16
Firearm Fit	AR-15, M16, M4
Stock Material	Fiberglass Reinforced Polymer
OAL (Length)	7.08 inches (18 cm)
Height	5.11 inches (13 cm)
Width	1.88 inches (4.8 cm)
Weight	9.73 ounces (276 grams)
Butt Pad	Ergonomic Rubber
Stock Finish	Matte Black
Storage	Fixed, Water-Resistant
Storage Type	Fits 2x CR123 or AA Batteries
Mechanism	Patented Anti-Rattle
Buffer Tube	Fits MIL-SPEC & Commercial
Sling Points	3 Integrated Slots
Tube Included	No
SKU	107033
MPN	FXGLR16B