Ruger Mark IV™ Upper Receiver – Threaded Bull

Ruger Mark IV Threaded Bull Upper Overview

FIREARM WARNING: This is a serialized item considered to be a firearm by BATFE. This item must be shipped to a Federal Firearm License (FFL) holder. All BATFE, GCA & NFA rules apply! click here HOW TO BUY A GUN FROM US

The Ruger Mark IV threaded bull upper is a factory take-off removed from a brand new gun right out of the box. It gives buyers a genuine Ruger upper for a replacement project, a second upper setup, or a new build with factory components instead of aftermarket alternatives.

This upper fits all Ruger MK IV and MK IV 22/45 models and features a 4.40″ blued steel bull barrel with 1/2-28 threads. In addition, it includes factory sights and a silver Picatinny rail, so it offers a practical factory option for shooters who want threaded-barrel capability and an optics-ready setup in one complete upper. As a result, buyers get a versatile factory configuration without piecing parts together. Free shipping adds even more value.

Key Features

• Factory OEM Ruger Mark IV upper receiver
• Factory take-off removed from a brand new gun
• Fits Ruger MK IV and MK IV 22/45 models
• Blued steel construction
• Includes factory sights and silver Picatinny rail
• 4.40″ threaded bull barrel
• Threaded 1/2-28
• Twist rate: 1:16″ RH
• Weight: 17 oz
• Made in the USA
• Free shipping

Compatibility for Ruger Mark IV Pistols

This upper fits Ruger MK IV and MK IV 22/45 models. However, this listing does not include the bolt assembly, so buyers should plan accordingly when completing a pistol or upper setup. Therefore, please verify compatibility with your specific configuration before ordering.

Frequently Asked Questions

Does this upper include the bolt assembly?
No. This listing does not include the bolt assembly.

Is the barrel threaded?
Yes. The barrel uses 1/2-28 threads.

What is included with the upper?
This listing includes the upper receiver, factory sights, and a silver Picatinny rail.

Will this fit a Ruger MK IV 22/45?
Yes. It fits Ruger MK IV and MK IV 22/45 models.

Important Notes

• This is a serialized item and must ship to an FFL holder.
• Not available in CA, MA, or anywhere else where threaded pistols are not legal.
• This listing does not include the bolt assembly.
• Please verify legality in your area before ordering.