1. Home
  2. Optics & Sights
  3. Mounts & Rings
  4. Scope Rings & Mounts
Scope Rings & Mounts

Ruger 30mm Medium Scope Ring 4K30HM – Fits 30mm Tube, Matte Stainless (90318)

No reviews yet Be the first to review
Brand Ruger Shop all → MFR# 90318 UPC 736676903184
Shop all →
Free ground shipping
Ruger 30mm Medium Scope Ring 4K30HM – Fits 30mm Tube, Matte Stainless (90318)

Click the image to open it full size. Additional supplier images appear when available.

Why customers choose this item

  • 30mm scope ring size
  • Medium height profile
  • Matte stainless finish
  • Fits 42mm objective scopes
  • Standard ring design
  • Sold as single ring

Product highlights

  • Scope ring designed for mounting optics with 30 millimeter tube diameter
  • Medium height configuration supports scopes with 42 millimeter objective lenses
  • Matte stainless finish reduces glare and provides corrosion resistance
  • Designed as genuine Ruger factory accessory for proper firearm fitment
  • Constructed for secure scope mounting and consistent alignment performance
  • Sold individually for flexible mounting configurations

Product description

The Ruger Standard 30mm Medium Scope Ring 4K30HM Matte Stainless is a scope ring designed for mounting optics with a 30mm tube diameter. This scope ring is used to secure a compatible scope to a firearm mounting platform.

The Ruger Standard 30mm Medium Scope Ring features a matte stainless steel finish and is sold individually as a genuine Ruger factory accessory. It is designed to fit scopes with a 30 mm tube diameter and accommodates objective lens sizes up to 42 mm. This model uses a medium height profile for balanced clearance and alignment. In standard configurations, the ring attaches to compatible bases to maintain optic positioning. This scope ring is suitable for range use and firearm optic installation where consistent mounting and finish compatibility are required.

Specifications

Brand
Ruger
Model / Series
90318
MPN (Manufacturer Part #)
90318
UPC
736676903184
Item Type (leaf)
Scope Rings & Mounts
Pack Quantity
1
Primary Use / Application
Scope Mounting
Firearm Fit
Ruger Rifles
Ring Diameter
30mm
Ring Height
Medium
Material
Steel
Finish / Coating
Matte Stainless
Mount Type
Ring
Pieces Included
1
Mounting Hardware
Included

Related searches

30mm 4K30HM Matte Stainless Finish Medium Profile Ruger Scope Ring Silver Sold Individually Standard Series

Compare Similar Products

Attribute You're viewing
Ruger 30mm Medium Scope Ring 4K30HM – Fits 30mm Tube, Matte Stainless (90318)
Ruger 30mm Medium Scope Ring 4K30HM – Fits 30mm Tube, Matte Stainless (90318)
Ruger Scope Base Mount for MK I MK II MK III – Aluminum Black (90228)
Ruger Scope Base Mount for MK I MK II MK III – Aluminum Black (90228)
Ruger 30mm Medium Scope Ring 4B30 – Fits 30mm Tube, Matte Blued (90273)
Ruger 30mm Medium Scope Ring 4B30 – Fits 30mm Tube, Matte Blued (90273)
Price$42.04$28.12$42.04
Primary Use / ApplicationScope MountingScope MountingScope Mounting
MaterialSteelAluminumSteel
Mount TypeRingWeaver BaseRing
Finish———
Compatibility———
Tube Diameter———

You May Also Like

Related Products

Featured offers

Volume pricing for business and agency buyers, plus free ground shipping on most continental U.S. orders.

Business & agency accounts

Bulk discounts

Volume pricing, dedicated account management, ACH payment options, and special sourcing for businesses, agencies, law enforcement, and first responders.

Register an account
Every contiguous U.S. order

Free ground shipping

No minimum. Orders ship within one business day of payment and verification, and eligible orders can be upgraded to as fast as next-day at checkout.

See shipping details

Customer reviews

No reviews yet This product hasn't been reviewed. If you've used it, your write-up helps the next buyer.

Write a review

New gear, restocks, and member pricing

One email a week. Product drops, price changes on items you follow, and business-account offers.

Unsubscribe any time. We don't sell your address.