The Keystone of Your Build: Unmatched Strength for 30mm Scopes
Experience our flagship mounting system, now engineered for 30mm optics. The EGW Keystone 30mm Scope Rings are built for shooters who refuse to compromise on strength or precision. When your accuracy depends on a flawless connection between your 30mm scope and rifle, the Keystone series delivers. Precision CNC-machined from aircraft-grade 6061 aluminum, these rings provide exceptional strength in a lightweight, streamlined package.
Their low-profile .850" height is perfect for a wide range of rifles, promoting a better cheek weld and a more natural line of sight for scopes with objectives up to 50mm. What truly sets the Keystone rings apart is their robust, horizontally-split design featuring a heavy-duty Chromoly crossbolt and T15 Torx cap screws. This combination provides immense clamping force, ensuring your scope remains locked in place under the harshest recoil.
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.
Precision Machined: CNC-machined from solid 6061 aircraft-grade aluminum to the tightest tolerances.
Low-Profile Design: The .850" height is ideal for scopes with objectives up to 50mm, providing a tight-to-bore axis.
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: .850" (Low 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: 841370117901
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: What makes Keystone rings different from the HD Tactical series?
A: Both are our premier, heavy-duty ring lines. The HD Tactical rings are machined as a serialized matched set for the ultimate in precision. The Keystone rings use the same robust hardware in a more streamlined, aesthetic package, offering a fantastic balance of our strongest design at a great value.
Q: What is the benefit of a horizontally-split ring design?
A: A horizontally-split design allows for easier installation of the scope and can provide a more uniform pressure around the scope tube when torqued to spec, preventing any potential damage to your optic.
Q: Will these .850" low rings work with a 50mm objective scope?
A: Yes, in most cases. A .850" height provides enough clearance for most 30mm scopes with up to a 50mm objective lens on a flat Picatinny rail. However, we always recommend using our Scope Ring Height Calculator to verify fitment with your specific rifle and rail.
Q: Why do you use T15 Torx screws instead of Allen screws?
A: T15 Torx screws offer better engagement than standard Allen (hex) screws, which significantly reduces the risk of stripping the screw head when applying the proper torque. It's a more secure and reliable hardware choice, fitting for a flagship product.
Q: Are Keystone rings sold in pairs?
A: Yes, all EGW scope rings, including the Keystone series, are sold as a matched pair to ensure perfect alignment and a secure fit.
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.
Location:
52 BELMONT AVE,
QUAKERTOWN
Pennsylvania
18951
