Ruger Mark IV Hunter .22 LR — 6.88 in Fluted Bull
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About this product
The Ruger Mark IV Hunter .22 LR - 6.88 in Fluted Bull is a semi-automatic rimfire pistol engineered for precision target shooting with its signature fluted bull barrel and simplified takedown system. As a Ruger design, it inherits the reliability of the Mark series while implementing critical mechanical improvements over previous generations. This model specifically addresses the maintenance frustrations that plagued earlier Marks with its one-button disassembly, making it ideal for shooters who value both accuracy and serviceability.
What is the Ruger Mark IV Hunter used for?
This pistol is designed for precision rimfire target shooting and informal plinking where mechanical accuracy and easy maintenance are prioritized. The 6.88-inch fluted bull barrel provides exceptional harmonic stability for consistent .22 LR ammunition performance, while the target grips and adjustable sights support deliberate shooting at distances up to 50 yards. It's not intended for defensive use or high-volume competitive shooting where larger calibers or higher-capacity platforms would be more appropriate.
How does the Mark IV Hunter compare to the Browning Buck Mark?
The Ruger Mark IV Hunter outperforms the Browning Buck Mark Camper in barrel stabilization and takedown simplicity, though the Buck Mark often comes at a lower price point. Where the Buck Mark uses a pivoting barrel lockup that requires alignment during reassembly, the Mark IV's single-button system reduces field-stripping time to under 10 seconds with zero guesswork. However, the Buck Mark's 5.5-inch barrel model weighs just 34 ounces compared to the Hunter's 44.2 ounces, making it slightly more maneuverable for some shooters.
What does it weigh and what are the dimensions?
The pistol weighs 44.2 ounces (2.76 pounds) with an overall length of 11.12 inches and barrel length of 6.88 inches. The fluted bull barrel diameter measures 0.90 inches at its thickest point, providing significant mass for recoil absorption and sight alignment stability. These dimensions make it noticeably heavier than compact .22 pistols like the Stevens 334 Rifle in .308 Win, but the weight distribution aids in off-hand shooting accuracy.
Who is this NOT for?
This pistol is not suitable for concealed carry or defensive scenarios where compact size and rapid deployment are critical. The 11.12-inch overall length and target-oriented sights make it impractical for holster carry, while the .22 LR cartridge lacks the terminal performance needed for self-defense applications. Shooters seeking a multi-role firearm should consider a compact 9mm or a more versatile platform like the Stevens 555 Sporting Compact 20ga for field use.
What's in the box?
The package includes the pistol itself, two 10-round stainless steel magazines, a cable lock, and owner's manual. Ruger does not include optic mounting hardware despite the drilled and tapped receiver, requiring shooters to purchase separate base plates for red dot or scope installation. The magazines feature a positive feed lip design that reliably cycles standard and high-velocity .22 LR ammunition without modification.
Is the Mark IV Hunter worth it at $846.99?
At $846.99, this pistol justifies its price through superior barrel construction and revolutionary takedown mechanics compared to cheaper .22 LR options. The fluted bull barrel alone adds approximately $150 in manufacturing costs over standard tapered barrels, while the redesigned fire control group improves trigger consistency across thousands of rounds. For shooters who value range accuracy and maintenance simplicity over raw affordability, this represents a solid investment in a purpose-built rimfire platform.
Specs at a glance
Pros & cons
What works
- One-button takedown reduces field-stripping time to under 10 seconds - 90% faster than Mark III models
- 6.88-inch fluted bull barrel provides 0.90-inch diameter stabilization for consistent sub-2-inch groups at 25 yards
- Includes two 10-round magazines with anti-tilt followers that eliminate last-round feeding issues
Trade-offs
- 44.2-ounce weight is 10 ounces heavier than comparable Browning Buck Mark models - noticeable during extended shooting sessions
- No optic mount included despite drilled and tapped receiver - adds $40-60 for proper Picatinny base plate
- Target grips may not fit smaller hands comfortably - aftermarket options required for shooters with glove sizes below medium
Key attributes
| upc | 736676401604 |
| manufacturer | Ruger / Sturm, Ruger & Co. |
| manufacturer part number | 40160 |
| action | Single Action |
| atf type | Pistol |
| barrel finish | Satin Stainless |
| barrel length | 6.88" |
| caliber/gauge | .22 LR |
| capacity | 10 + 1 |
| color | Stainless |
| length | 14.25 |
| model | Mark IV |
| mount type | Drilled & Tapped |
| number of magazines | 2 |
| package height | 3.6 |
| package width | 10.8 |
| product type | Pistol |
| safety | Ambidextrous |
| shipping weight | 4.75 |
| sights | Adjustable Rear Sight |
| sights type | FIBER OPTIC |
| slide description | Satin Stainless Steel |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| units per box | 1 |
Frequently asked questions
- Is it compatible with suppressor attachments?
- Yes, the 1/2x28 threaded barrel accepts standard .22 LR suppressors like the SilencerCo Sparrow or Dead Air Mask. Threads are cut cleanly and concentric to the bore, though you'll need to verify your local NFA regulations before purchasing any suppressor.
- Does it fit universal pistol cases?
- The 11.12-inch length requires a case with at least 12 inches of interior space, such as Plano's All-Weather 42-inch case or similar tactical pistol cases. Standard compact pistol cases will not accommodate this model without modification.
- How long does shipping take to Montana?
- Firearms ship via FedEx Priority Overnight to your local FFL dealer, typically arriving within 2 business days from processing. Your FFL must have their license on file with us before we can release the shipment.
- Can I return it if it doesn't group well?
- Returns are accepted within 30 days for manufacturing defects, but accuracy issues require verification through a 100-round test session with quality ammunition. We recommend CCI Standard Velocity or Eley Club for establishing baseline performance before requesting evaluation.
- Does this work with Volquartsen triggers?
- Yes, the Mark IV accepts aftermarket trigger kits from Volquartsen, TandemKross, and other major manufacturers. Installation typically requires about 45 minutes with basic punch sets and takes the pull weight down to approximately 2.5 pounds from the factory 4-5 pounds.