Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models Review

What Makes Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models Stand Out?

The Primary Arms GLx Cantilever Scope Mount, 30mm, 20 MOA isn’t just another piece of metal; it’s a precision-engineered foundation for your optic, designed to bridge the gap between your rifle and your long-range aspirations. Crafted by Primary Arms, a company known for blending quality with affordability, this mount promises to deliver rock-solid stability, optimal eye relief, and an integrated 20 MOA cant to help you reach out and touch targets that were previously just a dream.

For years, I’ve struggled with scope mounts that either couldn’t handle recoil, were too heavy, or simply didn’t provide the necessary eye relief for comfortable shooting. I needed a mount that was both robust and lightweight, offering a forward offset to accommodate my preferred shooting stance on my AR-15 platform, and the 20 MOA cant was a significant draw, promising to extend the effective range of my existing optics without needing to invest in a new scope with higher internal elevation adjustment.

Upon unboxing, the GLx mount immediately impressed me with its clean lines, durable-looking MIL-SPEC hard coat anodized finish, and the evident quality of machining. The weight was surprisingly light for its size, a testament to the intelligently skeletonized design, and the tactile feel of the steel Tactical Thumbscrews instilled confidence.

Compared to other cantilever mounts I’ve used, like those from Aero Precision and Warne, the GLx seemed to offer a more robust clamping system and a more thoughtfully designed cantilever offset. While the Aero Precision is undeniably lighter, the GLx feels significantly more solid. The Warne, while rugged, lacks the integrated 20 MOA cant of the Primary Arms offering. My initial feeling was excitement; this mount appeared to be exactly what I needed to unlock the full potential of my rifle and optic combination.

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Real-World Testing: Putting Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models to the Test

First Use Experience

My initial test took place at my local shooting range, an outdoor facility that allows for target engagements out to 600 yards. I mounted the Primary Arms GLx Cantilever Scope Mount on my AR-15, pairing it with a 30mm tube variable optic. The mount provided ample forward extension, granting perfect eye relief.

I experienced varying conditions during my range time, from bright sunlight to intermittent light rain. The mount held zero flawlessly throughout the entire session, which is a testament to the solid steel cross bolt lugs and robust clamping system. I found the T15 cap screws easy to work with and appreciated the security offered by the #8 Torx fasteners with steel inserts. There were no immediate surprises or issues, and the overall installation was straightforward.

Extended Use & Reliability

After several months of regular use, encompassing numerous range trips and even a weekend hog hunt in the Texas brush, the GLx mount has continued to impress. The MIL-SPEC hard coat anodized finish has proven remarkably resistant to scratches and wear, despite being subjected to some less-than-gentle treatment in the field. Cleaning is simple, usually just requiring a quick wipe-down with a lightly oiled cloth.

Compared to my previous experiences with budget-friendly mounts that would often shift zero after a few hundred rounds, the GLx mount has remained steadfastly reliable. It has exceeded my expectations, providing a stable and consistent platform for my optic even under demanding conditions.

Breaking Down the Features of Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models

Specifications

• Ring Diameter: 30mm. This is the standard size for most modern rifle scopes, offering wide compatibility.
• Cant: 20 MOA. The integrated cant provides additional elevation adjustment, extending the effective range of your scope.
• Center-Line Height: 1.5″. This height is ideal for AR-platform rifles, providing proper cheek weld and alignment with iron sights, if used.
• Forward Offset: Over 2″. The cantilevered design pushes the scope forward for optimal eye relief on AR-style rifles.
• Material: 6061-T6 Aluminum. This aluminum alloy offers a great balance of strength and weight, making it ideal for scope mounts.
• Finish: MIL-SPEC Hard Coat Anodized. The hard coat anodizing protects the aluminum from corrosion and abrasion, ensuring long-term durability.
• Hardware: Zinc Phosphate Coated Steel. Zinc phosphate coating provides excellent corrosion resistance for the steel hardware, further enhancing durability.
• Fasteners: #8 Torx with Steel Inserts. These fasteners provide secure clamping force and prevent stripping, ensuring a reliable and long-lasting connection.
• Mounting System: Tactical Thumbscrews with Integral Recoil Lugs. The thumbscrews allow for easy installation and removal, while the recoil lugs ensure secure attachment to the Picatinny rail.
• Weight: 6.7 Oz. The lightweight design minimizes added weight to the rifle.
• Warranty: Lifetime. The lifetime warranty demonstrates Primary Arms‘ confidence in the quality and durability of their product.

Performance & Functionality

The Primary Arms GLx Cantilever Scope Mount, 30mm, 20 MOA excels in its primary function: providing a rock-solid and repeatable platform for mounting your optic. The integrated 20 MOA cant is particularly beneficial for shooters engaging targets at extended ranges, allowing them to utilize more of their scope’s available elevation adjustment. The mount’s robust construction ensures that your zero remains consistent, even under heavy recoil or harsh conditions.

The mount’s only minor weakness is the use of tactical thumbscrews. While they are convenient for tool-less installation and removal, they can potentially loosen over time with sustained recoil; however, I have not personally experienced this.

Design & Ergonomics

The GLx mount features a sleek and functional design. The skeletonized 4-screw cap rings reduce weight without sacrificing strength. The mount’s overall profile is relatively low, minimizing snagging and maximizing compatibility with various rail systems and accessories.

The ergonomic design ensures that the mount does not interfere with the rifle’s handling or balance. The thumbscrews are easy to grip and tighten, even with gloved hands.

Durability & Maintenance

The use of high-quality materials and a robust design ensures that the Primary Arms GLx Cantilever Scope Mount is built to last. The MIL-SPEC hard coat anodized finish provides excellent resistance to scratches, abrasion, and corrosion. The zinc phosphate coated hardware further enhances durability.

Maintenance is minimal, typically only requiring occasional cleaning with a lightly oiled cloth to remove dirt and debris. The lifetime warranty provides additional peace of mind, knowing that Primary Arms stands behind their product.

Accessories and Customization Options

The Primary Arms GLx Cantilever Scope Mount, 30mm, 20 MOA does not come with any specific accessories beyond the mount itself. However, it is compatible with any standard Picatinny rail system and is designed to accommodate a wide range of 30mm tube scopes.

The mount’s modular design allows for the addition of aftermarket accessories, such as bubble levels or offset mounts for red dot sights. While there are no specific “official” customization options, the standard dimensions and robust construction make it easy to integrate with other popular brands’ accessories.

Pros and Cons of Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models

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Who Should Buy Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models?

The Primary Arms GLx Cantilever Scope Mount, 30mm, 20 MOA is perfect for:

• Long-range shooters seeking to maximize the effective range of their optics.
• AR-15 owners needing a cantilever mount for proper eye relief.
• Hunters and competitive shooters who demand a stable and reliable mounting platform.

This mount might not be necessary for:

• Shooters who primarily engage targets at close ranges (under 200 yards).
• Individuals looking for the absolute lightest mount possible (though the GLx is already impressively light for its robustness).

A must-have accessory for this mount is a quality torque wrench to ensure proper tightening of the ring cap screws.

Conclusion on Primary Arms GLx Cantilever Scope Mount, 30mm, 20 – 1 out of 3 models

The Primary Arms GLx Cantilever Scope Mount, 30mm, 20 MOA is an exceptional value proposition. It delivers premium performance and features at a price point that is significantly lower than many competitors. The integrated 20 MOA cant, robust construction, and lightweight design make it an ideal choice for anyone looking to upgrade their rifle’s optic mounting system.

The price is absolutely justified given the quality, features, and performance.

I would wholeheartedly recommend the Primary Arms GLx Cantilever Scope Mount, 30mm, 20 MOA to anyone seeking a reliable and effective mounting solution for their rifle. If you are looking for a mount that blends strength, precision, and affordability, look no further. Upgrade your rifle today and experience the difference!