Maximum Clearance and Unshakable Performance for 30mm Scopes

Elevate your 30mm optic with the flagship performance of the EGW Keystone Scope Rings. Specifically engineered for situations demanding maximum height, these rings feature a 1.275-inch centerline, making them the ultimate solution for mounting scopes on AR-15s, flat-top rifles, or any firearm where a higher line of sight is crucial for a comfortable and effective cheek weld. This height provides ample clearance for even the largest objective lenses, ensuring your setup is versatile and uncompromised.

The Keystone series is built on a foundation of absolute strength. Each ring is precision CNC-machined from a solid billet of aircraft-grade 6061 aluminum and secured with a massive Chromoly steel crossbolt. This robust, horizontally-split design, clamped with T15 Torx screws, creates a virtually indestructible mounting platform that will not shift under recoil. For a high-performance rifle, demand a high-performance mounting system—demand Keystone.

The EGW Keystone Advantage:

• Flagship Performance for 30mm Tubes: Our best-selling ring, designed for the popular 30mm scope tube diameter.
• Robust Hardware: Features a 1/2" Chromoly steel crossbolt and T15 Torx screws for a secure, non-slip fit.
• Optimized for AR Platforms: The 1.275" height provides a proper, comfortable sight picture on AR-15s and other modern sporting rifles.
• Precision Machined: CNC-machined from solid 6061 aircraft-grade aluminum to the tightest tolerances.
• Made in the USA: Designed, machined, and assembled with pride in Quakertown, Pennsylvania.

The Modern Advantage: Why We Use Aircraft-Grade Aluminum

While traditional steel rings have their place, modern metallurgy has proven that strength doesn't have to come with a massive weight penalty. We use domestically-sourced 6061 aircraft-grade aluminum for its incredible strength-to-weight ratio. It's more than strong enough to hold zero on the heaviest magnum calibers, yet light enough that it won't weigh down your rifle. Furthermore, aluminum allows for more precise machining than steel, resulting in a perfect, stress-free fit on your scope tube that prevents ring marks.

Specifications:

• Series: Keystone Rings
• Height: 1.275" (High Profile)
• Tube Diameter: 30mm
• Material: 6061 Aircraft Grade Aluminum
• Finish: Matte Black Anodized
• Hardware: Chromoly Crossbolt (1/2" Nut), T15 Torx Cap Screws
• Torque Specs: Crossbolt to 65 in/lbs; Cap Screws to 15 in/lbs
• GTIN: 841370117925

Helpful Resources & Guides

Ensure a perfect fit for your flagship rings. Check our expert guides for help.

• Buyer's Guide: The Best Scope Rings for Picatinny & Weaver Rails
• The Ultimate Scope Ring Height Chart & Calculator

Frequently Asked Questions (FAQ)

Q: Is this the correct height for my AR-15 with a 30mm scope?

A: Yes, for most users, the 1.275" height is considered optimal for a 30mm scope on an AR-15 or similar flat-top rifle. It raises the optic to a level that aligns perfectly with a natural, heads-up shooting posture, making it more comfortable and faster to get on target.

Q: What is the largest objective lens I can use with these high rings?

A: The 1.275" height provides clearance for virtually any 30mm scope objective lens on the market, including 56mm and larger, when used on a standard flat-top receiver. There is typically no concern about the scope bell hitting the rail or handguard with rings this high.

Q: What is the benefit of the Chromoly crossbolt used in the Keystone series?

A: Chromoly steel is significantly stronger and more resistant to shearing forces than the hardware found in typical budget-friendly rings. This massive crossbolt is the component that directly fights the forces of recoil, ensuring your scope mount will not slip or lose zero, period.

Q: Will these rings work on a bolt-action rifle as well?

A: Yes, while they are ideal for ARs, these high rings can also be used on bolt-action rifles, especially those built into a chassis system or for shooters who prefer a higher head position for long-range shooting disciplines.

Q: Are Keystone rings sold individually or as a pair?

A: All EGW scope rings, including our flagship Keystone series, are sold as a matched pair to ensure perfect alignment and a secure fit right out of the box.

Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to www.P65Warnings.ca.gov.