Want Free Shipping?

Subscribe to our mailing list and get free shipping
on orders of $200 or more!
No thanks, I'm already subscribed
Free shipping limited to retail orders of $200 or more
in the 48 contiguous states.

MK IV Replacement Uppers

Please note: All MK IV Uppers are serial numbered items and must be shipped to an FFL dealer.

The Pencil

The Pencil is a staple in the Ruger® community. Even more affordable than The Bare Bones, The Pencil is lightweight and tapered to give you that classic Ruger® MK™ look that so many people appreciate. Features a 6" tapered barrel.

Includes matching factory Ruger® case.

Out of Stock
Email me when back in stock

The Almost as Popular

An optics-ready version of our Most Popular configuration. We cut the barrel to 4.5”, thread it ½ x 28 TPI, and install a picatinny rail to mount your optic. This saves you the time, expense and hassle of having your current upper threaded. Thread protector is included.

Out of Stock
Email me when back in stock

The Most Popular

Our most requested configuration. We cut the barrel to 3.5”, thread it ½ x 28 TPI, and reinstall the factory Ruger® front sight and our Tritium Adjustable Rear Sight. This saves you the time, expense and hassle of having your current upper threaded. Thread protector is included. The Ruger® case with matching serial number is also included.

Out of Stock
Email me when back in stock

The Most Popular, with Comp

Our most requested configuration. We cut the barrel to 3.5”, thread it ½ x 28 TPI, install our Forward Blow Comp, and finally reinstall the factory Ruger® front sight and our Tritium Adjustable Rear Sight. This saves you the time, expense and hassle of having your current upper threaded. Ruger® case with matching serial number is also included.

Out of Stock

The Most Popular, without Sights

Our most requested configuration, just without sights. We cut the barrel to 4.5” and thread it ½ x 28 TPI. This saves you the time, expense and hassle of having your current upper threaded. Thread protector is included.

Out of Stock
Email me when back in stock

The Total Package

This configuration has it all. Completely change how your pistol handles with the push of a button. Our Volquartsen 4.5” Target Barrel installed on the Ruger® MK IV™ receiver with Hi-Viz front sight and Target Rear Sight. The barrel has been threaded ½” x 28 and includes a Picatinny mount. Open sights can be used while the mount is installed.

Out of Stock

The Bare Bones

This upper is our most affordable option and DIYer’s dream. It’s a great value if you’re planning to use an optic or if you are wanting to customize the length of your barrel and have a lathe to do the work yourself.

  • Brand new
  • No sights, may have small blemishes from when rear sight was removed.
  • Does NOT include the Ruger® hard case
Out of Stock

The Backup

This upper includes the Ruger® case with matching serial number and adjustable sights. The push-button takedown makes switching uppers easier than switching from open sights to an optic or vice versa. This makes it the perfect back-up barrel if you’re like us and sending a lot of 22 LR rounds downrange, or replacement for an existing barrel that’s starting to show some wear.

  • Brand new upper removed from a factory Ruger MK IV pistol, SKU # 40107
  • 5.5" barrel
  • Includes factory case with matching serial number
Out of Stock

The Backup, without case

This upper features adjustable sights. The push-button takedown makes switching uppers easier than switching from open sights to an optic or vice versa. This makes it the perfect back-up barrel if you’re like us and sending a lot of 22 LR rounds downrange, or replacement for an existing barrel that’s starting to show some wear.

  • Brand new upper removed from a factory Ruger MK IV pistol, SKU # 40107
  • 5.5" barrel
Out of Stock
Email me when back in stock

Ruger MK IV Tactical Upper

  • Factory take-off upper from a Ruger MK IV Tactical
Out of Stock

The Stubby One

Because sometimes you want something even shorter! We cut the factory barrel to 2”, thread it ½ x 28 TPI. This saves you the time, expense and hassle of having your current upper threaded. Thread protector is included. The Ruger® case with matching serial number is also included.

These uppers may have slight cosmetic blemishes where they were clamped in the lathe. They are not drilled and tapped to accept a front sight.

Out of Stock
Email me when back in stock

The Stubby One with Mount

Because sometimes you want something even shorter! We cut the factory barrel to 2”, thread it ½ x 28 TPI, and installed our Picatinny mount. This saves you the time, expense and hassle of having your current upper threaded. Thread protector is included. The Ruger® case with matching serial number is also included.

Out of Stock

The Gold One

This stylish addition to our line-up of factory take-off uppers is sure to turn heads at the range. Barrel is threaded 1/2x28 and ready to accept additional accessories. Features a black receiver with gold barrel. Ruger® case with matching serial number is also included.

Out of Stock

The Stubby Pencil

Featuring a compact 4-3/4" barrel, the Stubby Pencil is the compact version of the ever popular pistol, The Pencil. Even more affordable than The Bare Bones, The Stubby Pencil is lightweight and tapered to give you that classic Ruger® MK™ look that so many people appreciate.

Includes matching factory Ruger® case.

Out of Stock
Email me when back in stock

The Whole Ten

  • 10" Factory Ruger MK IV
  • Target Sights
Out of Stock

The Compensated One

  • Brand new Ruger MK IV factory take-off upper
  • Target Sights
  • 5.5" Barrel threaded 1/2x28
  • Flash suppressor included
  • Includes case with matching serial number
  • Upper only, does not include bolt or any internal parts.
Out of Stock
Email me when back in stock

The Optics Ready One

This is a new factory take-off MK IV upper. It features open sights and an optics rail.

Out of Stock

Please wait while we process your request