Ruger 90315 4K Medium 30mm Scope Ring - Target Gray Stainless Steel
- Type:
- Ring - Individual
- Firearm Make Fit:
- Ruger
- Finish-Color:
- Gray
- Tube Diameter:
- 30mm
- Size:
- Accepts up to 42mm
- Material:
- Steel
- Height:
- .937"
The Ruger 90315 4K Medium 30mm scope ring in Target Gray stainless steel is a genuine Ruger factory accessory designed to secure your optic on the rifle. If you're mounting a scope with a 30mm tube diameter, this medium-height ring provides the proven durability and fit you expect from Ruger—sold individually, so you'll need a matching pair for a standard two-ring setup.
Built from stainless steel and finished in Target Gray, these rings resist corrosion in the field while maintaining a low-key appearance that pairs well with modern rifle builds. The medium height positions your scope at a standard viewing plane, ideal for rifles with traditional stocks and cheek welds.
Whether you're outfitting a hunting rifle, match gun, or tactical build, having the right scope ring is non-negotiable—a loose or mismatched ring can throw off your zero and cost you at the moment of truth. Ruger's direct factory rings eliminate guesswork about fitment and quality.
Key Features
- Fits 30mm scope tube diameter
- Target Gray stainless steel construction for corrosion resistance
- Medium height ring geometry
- Genuine Ruger factory accessory
- Sold individually
Specifications
| Brand | Ruger |
| Model | 90315 4K |
| Ring Height | Medium |
| Scope Tube Diameter | 30mm |
| Material | Stainless Steel |
| Finish | Target Gray |
| Quantity | Individual Ring (1) |
Frequently Asked Questions
Will these rings fit my scope?
Yes, if your scope has a 30mm tube diameter. The objective diameter tolerance is 42mm. Always confirm your scope's tube size before purchase—30mm is a common size, but 1-inch and 34mm tubes are also in use.
How many rings do I need?
You'll need two rings to properly mount a scope on a rifle—one at the front and one at the rear. This listing is for a single ring, so order a pair.
Why choose factory Ruger rings?
Genuine Ruger factory accessories are engineered and quality-controlled to Ruger's standards for fit and durability, eliminating compatibility questions and ensuring a tight, reliable mount.

