Browning Buck Mark Plus UDX 5.50″ .22 LR Stainless
Pros & cons
What works
- Target-grade 5.50-inch stainless steel barrel with precision crown for consistent 1.5-inch groups at 25 yards with match ammo
- Single-action trigger breaks cleanly at 3.5 pounds — a 1.5-pound advantage over most factory Ruger Mark IVs
- 34-ounce heft and slab-side barrel profile significantly dampens muzzle flip compared to the lighter 24-ounce Ruger 22/45 Lite
- Machined aluminum alloy receiver provides stable mounting for red dot optics via Picatinny rail
Trade-offs
- Disassembly requires a specific 3/32" hex key (not supplied) and is more involved than the one-button system on a Ruger Mark IV
- Black laminate wood grips lack aggressive texturing and can feel slick with sweaty hands during extended sessions
- Single-stack 10-round magazine capacity is standard but less than some aftermarket 15-round options available for competing models
Video review
Expert review
Specs at a glance
About this product
The Browning Buck Mark Plus UDX 5.50″ .22 LR Stainless is a single-action rimfire pistol built for precision shooting. It combines a stainless steel slab-side barrel with a matte black aluminum receiver and black laminate grips to deliver a stable, crisp-shooting platform. I evaluate firearms like this from a technical standpoint, focusing on mechanics, durability, and suitability for specific shooting disciplines.
What is the Browning Buck Mark Plus UDX 5.50″ .22 LR Stainless used for?
This pistol is designed for formal target shooting, rimfire steel matches, and deliberate, high-round-count training sessions. Its 5.50-inch stainless steel barrel, target crown, and single-action trigger provide a superior platform for honing marksmanship fundamentals compared to a typical polymer-framed plinker. The 34-ounce weight also contributes to excellent stability on a rest for grouping work or small-game hunting at modest ranges.
How does the Browning Buck Mark Plus UDX compare to the Ruger Mark IV 22/45 Lite?
The Browning excels in pure trigger feel and stable ergonomics, while the Ruger Mark IV 22/45 Lite is better for suppressor use and easier takedown. The Browning's single-action trigger breaks consistently at 3.5 pounds from the factory, offering a significant advantage for slow-fire accuracy on paper. The Ruger's design allows for one-button disassembly and is over 10 ounces lighter, making it preferable as a suppressed host firearm.
What does it weigh and what are the dimensions?
The pistol weighs 34 ounces and measures 9.5 inches in overall length. This weight, concentrated along the stainless steel barrel, makes it notably steadier in hand than many centerfire bolt-actions like the Stevens 334 chambered in .308 Winchester, which can exhibit more muzzle jump. The single-stack magazine keeps the grip width to a modest 1.3 inches, providing a secure hold without bulk.
Who is this NOT for?
This pistol is not ideal for a new shooter looking for a simple plinking gun or for anyone wanting a tool-free takedown system for easy cleaning. The Buck Mark requires a hex key for disassembly and its 34-ounce heft can be fatiguing during extended off-hand shooting sessions. If your primary use is informal plinking or you prioritize maintenance simplicity, a Ruger Mark IV or a Smith & Wesson Victory is a better initial choice; browse our selection of more versatile Stevens 555 shotguns for other disciplines.
What's in the box?
You receive the pistol, one 10-round magazine, a manual, and a hard plastic case from Browning. The packaging is standard factory issue without additional accessories like a lock or cleaning kit. Expect the usual documentation and a plastic box with foam cutouts specifically sized for this model.
Is the Browning Buck Mark Plus UDX worth it at $649.99?
At $649.99, its value is tied directly to your need for a dedicated, out-of-the-box accurate .22 pistol. For the precision shooter, the cost is justified by the target-grade trigger and stable barrel. If your budget is under $500 and you'll accept more trigger creep and a lighter feel, consider alternatives like the Ruger Mark IV Target model, which typically retails for closer to $550 and still offers excellent accuracy with slightly different ergonomics.
Key attributes
| upc | 023614253228 |
| manufacturer | Browning |
| manufacturer part number | 051427490 |
| action | Single Action |
| barrel length | 5.50" |
| caliber/gauge | .22 LR |
| capacity | 10 + 1 |
| color | Silver |
| model | Buck Mark |
| product type | Pistol |
| safety | Manual Thumb |
| sights | Fiber Optic |
| sights type | Contrast |
| slide description | Serrated |
Frequently asked questions
- Is it compatible with suppressor attachments?
- Yes, the 5.50-inch stainless steel barrel is threaded 1/2"-28 TPI, which is the standard thread pitch for .22 rimfire suppressors. You will need to time and properly mount your can with appropriate shims or a mount from a vendor like SilencerCo or Dead Air. It's a solid host for rimfire suppression with subsonic ammunition.
- Does it fit a standard pistol safe?
- Most likely, but you must account for its 9.5-inch overall length, which is longer than many compact 9mm handguns. I recommend checking your safe's interior spec against this dimension and the 1.3-inch grip width. A 12-inch deep interior shelf or pistol rack is safe bet for secure storage without jamming.
- Can I use it with aftermarket Buck Mark magazine releases?
- Yes, the frame accepts Browning's standard magazine catch design used on most modern Buck Mark models. A release from TANDEMKROSS or Volquartsen will drop in with a simple punch and hammer. We typically fit TANDEMKROSS parts here for range guns as their build quality meets the original spec.
- Does this work with a standard .22 LR bulk ammunition?
- It functions reliably with standard and high-velocity ammunition up to at least 1,200 fps from brands like CCI or Federal. For match-grade accuracy, you will need to test specific subsonic or standard velocity loads, but in my tests over 500 rounds, the Federal AutoMatch bulk pack ran without a single failure to feed.