The EGW 30mm Keystone scope rings in .990" medium height are a solid, no-nonsense choice for hunters and shooters who want American-made quality without the premium price tag. Built by EGW's in-house CNC machining from 6061 aircraft-grade aluminum, these rings deliver the strength and precision you need to keep your optic zeroed through hard use. The medium height works well on most modern AR platforms and hunting rifles with standard rails, sitting at the sweet spot between low-mounted concealed builds and high-ring setups for co-witnessing iron sights.
The Keystone design cuts installation time with its horizontally split construction—you can mount and unmount your scope without disassembling the whole ring. The chromoly crossbolt and half-inch nut create a secure, repeatable clamp that won't creep or shift on the rail, whether you're running Picatinny or Weaver style bases. T15 hardware on the ring caps means the fasteners hold their grip and won't strip under field maintenance, and the in-house machining ensures consistent tolerances across every set EGW ships.
These rings handle 30mm tubes, the standard for most modern hunting and long-range optics. The .990" medium height gives you clear clearance over most handguards and forends, and pairs well with rifles that don't need extreme mounting positions. If you're building a practical, hard-working rifle and want a solid ring that won't let you down, the Keystone series offers the dependability of American manufacture and honest engineering at a price that won't break the budget.
Key Features
- 6061 aircraft-grade aluminum construction, machined in-house for consistent quality
- Horizontally split design for quick installation and removal
- Chromoly crossbolt and ½" nut for secure, repeatable ring-to-rail engagement
- Compatible with Picatinny and Weaver style rails
- T15 mounting hardware resists stripping and corrosion
- .990" medium height works on standard hunting and AR rifles
Specifications
| Brand | EGW |
| Tube Diameter | 30mm |
| Ring Height | .990" Medium |
| Material | 6061 Aircraft-Grade Aluminum |
| Fastener Type | T15 Hardware with Chromoly Crossbolt |
| Rail Compatibility | Picatinny and Weaver |
| Design | Horizontally Split |
Frequently Asked Questions
What height should I choose between the low, medium, and high options?
Ring height depends on your rifle setup and what you're clearancing over. The .990" medium height is the standard choice for most hunting rifles and AR platforms with standard handguards and forends. Use low (.850") if you're mounting very close to the bore for a streamlined profile, or high (1.275") if you need to clear a tall handguard or want to co-witness with raised iron sights.
Are these rings compatible with both Picatinny and Weaver rails?
Yes. The Keystone rings work on both Picatinny and Weaver style rails, giving you flexibility across different platforms.
What size tube diameter do these rings fit?
These are 30mm rings, the standard diameter for most modern hunting scopes, tactical optics, and long-range hunting optics.
Can I mount and unmount my scope without taking the rings completely apart?
Yes. The horizontally split design lets you remove your scope by loosening the crossbolt without disassembling the ring itself, saving you time during maintenance or when swapping optics.
