Elevate Your Precision: The Primary Arms GLx 30mm Cantilever Scope Mount for AR Platforms

Are you a dedicated shooter striving for unparalleled accuracy at extended ranges? Do you struggle with achieving optimal eye relief on your AR-platform rifle, or find your scope's elevation adjustments running out when engaging distant targets? Look no further. The Primary Arms GLx 30mm Cantilever Scope Mount is engineered specifically to address these critical challenges, transforming your shooting experience with its innovative design and robust construction. Crafted with meticulous precision in the USA, this mount is not just an accessory; it's a foundational component for maximizing your rifle's potential.

Why Choose the Primary Arms GLx 30mm Cantilever Scope Mount?

For shooters who demand the best, the Primary Arms GLx 30mm Cantilever Scope Mount offers a superior solution. Whether you're a long-range competitive shooter, a precision hunter, or a tactical enthusiast, this mount is designed to provide the stability, flexibility, and reliability necessary for peak performance. It directly solves common issues faced by AR users, such as finding the perfect eye relief with larger scopes and extending the usable range of your optic's internal adjustments for extreme distances.

This mount isn't just about holding your scope; it's about optimizing your entire shooting system. Its specialized design caters specifically to the unique ergonomics and rail systems of AR-15 and AR-10 type rifles, ensuring a seamless and highly effective integration.

Key Features and Engineering Excellence

The Primary Arms GLx 30mm Cantilever Scope Mount is a testament to thoughtful engineering and superior manufacturing. Every aspect of its design is optimized for performance and durability.

Precision Machined 6061-T6 Aluminum Construction

At the heart of this mount's strength and lightweight profile is its construction from high-grade 6061-T6 aluminum. This aerospace-grade aluminum alloy is renowned for its exceptional strength-to-weight ratio and outstanding corrosion resistance, making it an ideal material for demanding firearm applications. The precision machining ensures tight tolerances, perfect alignment, and a flawless finish, contributing to the mount's overall rigidity and reliability. This material choice allows the mount to withstand significant recoil forces without adding unnecessary bulk to your rifle, which is crucial for maintaining balance and maneuverability.

Optimized for the AR Platform: The Cantilever Advantage

One of the most significant benefits of this mount is its cantilevered design. Modern AR platform rifles, with their inline stock and often limited rail space forward of the receiver, can present challenges when mounting larger scopes and achieving proper eye relief. The GLx cantilever mount solves this by extending the optics forward over 2 inches past the receiver's front edge. This forward extension allows shooters to achieve the "perfect eye relief" and maintain a consistent, comfortable head position, even when using scopes with longer body lengths or higher magnifications. Proper eye relief is paramount for a full field of view, reducing eye strain, and quickly acquiring targets.

Extending Your Reach: The 20 MOA Cant

For long-range shooting, the 20 MOA (Minutes of Angle) cant integrated into this mount is a game-changer. What does 20 MOA mean for you? It effectively provides an additional 20 MOA of downward bias to your scope's point of aim relative to the bore. This pre-tilts your scope slightly downward, allowing you to use more of your scope's internal elevation adjustment for engaging targets at extended distances. Without this cant, many scopes would run out of "up" adjustment when trying to compensate for bullet drop at 800 yards, 1000 yards, or beyond. The 20 MOA cant effectively "zeros" your scope for longer ranges, preserving your scope's precious internal adjustment range for fine-tuning at various distances. This feature is particularly invaluable for precision rifle competitions, long-range hunting, and tactical applications where extreme distance engagements are common.

Robust and Secure Scope Retention: Skeletonized 4-Screw Cap Rings

The GLx mount features skeletonized 4-screw cap rings. The "skeletonized" design reduces overall weight without compromising strength or integrity. Each ring employs four screws to securely clamp your 30mm scope, ensuring it remains precisely zeroed even under heavy recoil or harsh operating conditions. This robust clamping mechanism prevents any rotational movement or shifting of the scope, which is critical for maintaining accuracy shot after shot. The 30mm ring size accommodates a wide array of popular rifle scopes, making this mount a versatile choice for many optics.

Unwavering Rail Clamp: Solid Steel 1/2" Tactical Thumbscrews with Integral Recoil Lugs

The interface between your mount and your rifle's Picatinny (MIL-STD-1913) rail is arguably the most critical connection. The Primary Arms GLx mount utilizes solid steel 1/2" Tactical Thumbscrews for a robust and tool-free attachment to your top rail. These thumbscrews allow for quick installation and removal while providing immense clamping force. Beyond the screws, the mount incorporates integral recoil lugs. These machined lugs fit snugly into the cross-slots of your Picatinny rail, preventing any forward or backward movement of the mount under recoil. Even with the heaviest calibers like 7.62x51mm (.308 Winchester) or 6.5 Creedmoor, the combination of strong thumbscrews and integral recoil lugs ensures your scope mount stays exactly where it needs to be, shot after shot. This design dramatically enhances the repeatability of your zero, which is vital for consistent accuracy.

Backed by a Lifetime Warranty

Primary Arms stands behind the quality and durability of the GLx 30mm Cantilever Scope Mount with a comprehensive lifetime warranty. This commitment to customer satisfaction and product reliability offers immense peace of mind, knowing that your investment is protected against manufacturing defects or material failures for the life of the product. This warranty underscores the confidence in its USA-made quality and design.

Real-World Use Cases and Problem Solving

How does the Primary Arms GLx 30mm Cantilever Scope Mount enhance your shooting experience in practical scenarios?

• Long-Range Precision Shooting: For competitive shooters engaging targets at 600, 800, or 1000+ yards, the 20 MOA cant is indispensable. It maximizes your scope's usable elevation travel, eliminating the need for complex holdovers or external cant devices.
• Hunting: Whether you're stalking deer or hunting varmints, reliable eye relief and a robust mount are crucial. The cantilever design ensures a comfortable shooting position for quick target acquisition, while the solid construction withstands rugged field conditions.
• Tactical Applications: In dynamic environments, a stable and durable optics platform is non-negotiable. The GLx mount's integral recoil lugs and steel thumbscrews ensure your optic stays zeroed, even after rapid fire or accidental bumps.
• Custom AR Builds: If you're building a precision AR-15 or AR-10, this mount is the perfect complement to high-end optics and barrels, providing a solid foundation for your long-range aspirations.
• Addressing Common AR Eye Relief Issues: Many standard scope rings place the optic too far back on the receiver, forcing shooters to "turtle" their neck or adopt uncomfortable positions. The GLx cantilever mount projects the scope forward, allowing for a natural, repeatable cheek weld and consistent eye relief.

Optimizing Your Setup: Installation and Compatibility

The Primary Arms GLx 30mm Cantilever Scope Mount is designed for straightforward installation on any rifle equipped with a standard Picatinny (MIL-STD-1913) rail.

Installation Steps:

1. Preparation: Ensure your rifle is unloaded and pointed in a safe direction. Clean your Picatinny rail and the mount's contact surfaces.
2. Mount Attachment: Loosen the 1/2" Tactical Thumbscrews and place the mount onto your rifle's top rail. Push the mount firmly forward into the rail slots to seat the integral recoil lugs against the front wall of the slot. This ensures repeatable positioning.
3. Secure the Mount: Hand-tighten the thumbscrews securely. For optimal torque, you can use a flathead screwdriver or the appropriate tool if the thumbscrews have a slot, but the large knurling is designed for tool-free operation. Ensure the mount is clamped tightly to the rail, eliminating any play.
4. Scope Placement: Gently place your 30mm rifle scope into the bottom half of the rings. Ensure the scope's turrets are properly aligned (if applicable, use a leveling kit or plumb bob method).
5. Secure Scope Caps: Place the top skeletonized ring caps over the scope. Hand-tighten the four cap screws on each ring in a cross-pattern (e.g., top-right, bottom-left, top-left, bottom-right) to ensure even pressure.
6. Final Torque: Using a torque wrench, tighten the ring cap screws to the manufacturer's recommended torque specifications (typically found in your scope's or mount's manual). Avoid over-tightening, as this can damage your scope.
7. Zeroing: Once installed, proceed to zero your rifle and scope at your desired distance.

Compatibility:

• Rifles: Universally compatible with AR-15, AR-10, and other rifles featuring a full-length or sufficient section of MIL-STD-1913 (Picatinny) rail.
• Scopes: Designed specifically for scopes with a 30mm main body tube diameter. Check your scope's specifications to confirm its tube diameter.

Building Trust: The Primary Arms Commitment to Quality

When you choose a Primary Arms GLx product, you're investing in a brand known for its dedication to quality, innovation, and performance. The GLx line represents a balance of high-end features and accessible pricing, offering exceptional value. The "Made in USA" designation for this mount is not just a label; it signifies adherence to stringent manufacturing standards and supports domestic industries. This commitment to American craftsmanship ensures a product that you can trust in critical situations.

These precision-engineered scope mounts, along with a wide array of other premium firearm components and optics, are readily available at DEGuns.com. DEGuns is committed to providing top-tier products from reputable brands, ensuring that you have access to the best tools to enhance your shooting capabilities.

In summary, the Primary Arms GLx 30mm Cantilever Scope Mount is an indispensable upgrade for any AR-platform rifleman seeking to push the boundaries of their accuracy. Its strategic design, robust materials, and shooter-centric features make it a standout choice for those who refuse to compromise on performance.

Primary Arms GLx 30mm Cantilever Scope Mount Specifications

Feature	Detail	Advantage
Material	6061-T6 Aluminum	Lightweight, high strength-to-weight ratio, excellent corrosion resistance.
Manufacturing	Precision Machined in USA	Superior quality control, tight tolerances, robust construction, supports domestic industry.
Ring Diameter	30mm	Accommodates a wide range of popular rifle scopes.
Cant	20 MOA (Minutes of Angle)	Extends scope's usable elevation adjustment for long-range shooting, ideal for bullet drop compensation.
Cantilever Offset	Over 2 inches forward	Ensures optimal eye relief on AR platforms, improves shooting comfort and target acquisition.
Ring Design	Skeletonized 4-Screw Cap Rings	Reduces weight without sacrificing clamping strength, secures scope firmly.
Mounting Hardware	Solid Steel 1/2" Tactical Thumbscrews	Tool-free installation/removal, provides robust clamping force to Picatinny rails.
Stability Features	Integral Recoil Lugs	Prevents mount shift under heavy recoil, maintains zero repeatability.
Platform Optimized	AR-15 / AR-10	Designed specifically for the ergonomics and rail systems of AR-style rifles.
Warranty	Primary Arms Lifetime Warranty	Peace of mind, protection against manufacturing defects and material failures.
SKU	910081	Internal product identification for easy referencing.
UPC	818500015468	Universal Product Code for retail and inventory management.