Ruger Mark IV 22/45 Review: Sheer Fun [Tested]

Video ruger mk iv review

This firearm transported me back in time and reminded me how shooting can just be plain fun.

Twenty years of law enforcement have me constantly considering how I can be quicker to the draw, faster in my reloads, consideration of cover, and issuing commands while I’m handling my firearm.

My gun is a defender of my life and the lives of others, but there was a time when things were much simpler.

In fact, they were a hoot!

The Ruger Mark IV 22/45 took me back there and I’m going to tell you how it can take you there too.

The Evolution of Fun

Ruger took me back to simpler times when the .22 long rifle was the next logical progression from a BB gun.

Young people growing up in rural areas might be called upon to save their town from the ravages of Black Bart or some other villain.

I had known about the Mark series pistols for some time but had heard mixed reviews because of the engineering behind the handguns. Things have changed significantly.

Ruger Mark IV 22/45 Lite
Ruger Mark IV 22/45 Lite

The order of business when I received the pistol was to take it apart. It really couldn’t have been easier. I made sure it was safe and empty, pressed a button, and it disassembled into four distinct parts which I could tell would be easy to clean.

The worst of my fears abated, I endeavored to see what joy might be gleaned from this modernized shooter.


Heading out to the range a total of five times I endeavored to put the pistol through its paces with four brands of ammo as well as a suppressor to test the gun’s versatility (Ruger makes a variant with a threaded barrel for just such purposes).

Perhaps most importantly, I mounted a Vortex Razor with a 3 MOA dot to give it that modern accuracy, and quick sight acquisition flair.

The 22/45 comes with adjustable iron sights but I wanted to plink with the greatest of ease. It also has a Picatinny rail which I mounted, then bolted on the Vortex. With just a little bit of time to get the Razor adjusted, I dialed it in and soon was plinking away like the days of old. Or wait, not like the days of old, better than the days of old!

Ruger Mark IV 22/45 Lite, Controls
Ruger Mark IV 22/45 Lite, Red Dot

By dialing the red dot brightness up or down depending on the lighting conditions, I was able to pull up on target, find my red dot, and start shooting. This was much easier than aligning the front and rear sights like I was used to; it was a modern marvel!


The trigger had about 1.5 mm of slack before it started to snug, then broke at an average of 3.12 lbs on my Lyman Digital Trigger Gauge. Loading the magazine was interesting too until I learned to pull down on the spring tension release button which held the follower at bay.

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The controls were all easily accessible, particularly because I had selected the Ruger Mark IV 22/45. Although I wanted to get away from the responsibility-laden shooting of law enforcement, this model made for an easier bridge.

With one magazine, once you shot the 10 rounds, you were done.

No need to conduct a rapid reload, no need to seek cover or call for some! I soon began to relax and enjoy the sheer simplicities of marksmanship, sending rounds downrange with great accuracy and little regard for heavy recoil or a booming percussion.

A moment of brilliance tugged at my mind’s edge. Hey, this is good enough that my kids might like it.

Ruger Mark IV 22/45 Lite, Cocked
Ruger Mark IV 22/45 Lite, Cocked

Despite the attractive nature of the gaming world, most children still crave analog experiences whether they realize it or not—especially when those experiences are shared with loved ones. I took my kids to the range and let them try the Ruger Mark IV also.

My son liked it.

He was comfortable enough that neither the recoil nor the pop of the .22 LR was really an issue for him.

He was big enough to grip the pistol easily and used the Vortex red dot to narrow in on his target and press the trigger back to complete, consistently emptying the magazine, hitting most of what he was aiming for.

My daughter was a bit too small to truly get a good grip on the pistol and reach the trigger also. So, we compromised. She held the gun and aimed intuitively through the Vortex while I provided a little support and pressed the trigger when she was on and said “ready”.

2. Ruger Mark IV 22/45 Lite, Grip
2. Ruger Mark IV 22/45 Lite, Grip

The result was magnificent. Using an old west splatter target, she shot bad guys aplenty and even peppered an errant horse in the butt for being in the vicinity. Much fun was had by both and an entertaining experience was shared by all.

I eventually had to stop shooting for the sheer pleasure and needed to remember I was reviewing this pistol for you, dear reader. I took my four ammo types and set out a target 12 yards away, then carefully fired an entire magazine of each for accuracy.

It wasn’t supported but it was about as accurate a test as you’d need to utilize to measure this plinking marvel.

I used three brands and four types of .22 long rifle. First was CCI, the 40-grain gold standard of plinkers everywhere.

Next were two varieties of Aguila, both 40-grain, one being standard velocity and the other being high velocity.

Finally, I used Federal Premium, also in a 40-grain.

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The last I used only during testing of the Gemtech suppressor, and this was Gemtech 42-grain subsonics.

The groupings came in as follows: CCI came in at two inches for ten whole rounds. The ammo was solid, reliable, and predictable with no failures to fire. Both Aguilas performed well, with only a slightly stronger pop distinguishing the high velocity from the standard.

With the high velocity, I achieved a 1.34-inch group and with the standard, I got approximately 2 inches. The Federal also averaged in at a group of 2 inches. All of these ammunitions were reliable and provided an economical level of fun with reasonable accuracy.

Heading to Liberty Firearms Institute on a slow day I was able to test the Gemtech GM-22 out with the Ruger Mark IV. This was a match made in heaven. Unscrewing the thread protector, I removed it and the crush washer before screwing on the suppressor.

I just so happened to be wearing a suit and tie at the time so admonishments from Q came ringing to my ears as a testy “double oh seven!”

Q 007 James Bond

I tried three ammo types and measured the difference in sound with a decibel meter about ear’s distance from the muzzle.

There was an ambient noise of approximately 70 dbl. in the range. Using various loads, I noticed a trend. The GM-22 took the rounds down in decibels to just above 100 decibels, removing the sonic crack one typically experiences.

Now, sound experts say 100 decibels will damage your hearing after 8 hours of steady exposure. All I noticed was a slight pop and the action of the bolt clicking.

For its diminutive size, the GM-22 is awesome.

Check out our field-strip video since there’s a few idiosyncrasies on the Mark IV.

By the Numbers

Reliability 5/5

I really racked up a tally with this pistol. Between me and my family, we ran approximately 1,500 rounds through the Ruger Mark IV 22/45. The only hiccup was shooter initiated. The base of the magazine sits deeply into the magwell and I failed to properly seat it once, causing a failure to feed. This was quickly remedied and not duplicated. The gun provided flawless performance and was only cleaned once during testing.

Ergonomics 4/5

The ergos on this pistol are wonderful. I like the slim profile of the grip, just like a 1911, and this also gives it less aesthetically in common with a Luger. The controls are all pretty easy to get to and even smaller hands can make use of them. There is a good design to the backstrap, protecting the shooter’s hand from the bolt that blows back. It is super easy to operate, from loading, firing, to cleaning.

Accuracy 3.5/5

I wouldn’t call the standard 22/45 a card splitting dynamo, but it does really well in what it is designed for. Imagine a few hours on a warm afternoon, plinking at bottles or cans set up in your favorite shooting spot. Or, perhaps you might hang a target such as Dastardly Dan, and work on fundamentals of shooting. The gun’s performance is solid and predictable. Using the Vortex Razor helped simplify things in my mind. For my children, only one address was necessary—put the red dot on what you want to hit!

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Customization 4/5

There is a ridiculous amount to customization available to these guns. Ever hear the name Volquartsen or Tandemkross?

You can change out triggers, barrels, grips, heck, just about anything you’d like and upgrade this gun ‘til your heart’s content. I wouldn’t call the market robust, but there are plenty of options out these for those looking to upgrade. Having the ability to add optics like the Vortex Razor and GM-22 suppressor also widen the variety of customization possible with this gun.

Value 4/5

These little pistols are an excellent value. Listed on a few websites between $400 and $500 (depending on model) you can’t go wrong. Is this the all-time home defender pistol? No. Is this the gun you spend quality time teaching your wife or children how to shoot and have countless hours of fun? Yes.

Overall 4/5

Hats off to Ruger for bringing the joy of shooting back to me in a way that is difficult to express.

Field Strip & Reassembly

The field strip and reassembly is a little different so we made a quick video to help you out.


The Ruger Mark IV is fun and easy to shoot. It’s a breeze to clean, it’s economical to feed, the reliability is flawless, and we loved that this little .22LR pistol fits any shooter, even the kids. The accuracy could be tuned up a little, but for a plinker, it’s hard to go wrong.

Ruger Mark IV 22/45 Lite
Ruger Mark IV 22/45 Lite

You can spend a lot of time teaching important fundamentals on this firearm that later translate to other systems. You can bond with members of your family and have a blast while plinking away. You can upgrade it into a race gun also, but it’s simply wonderful just the way it is.

Special thanks to Liberty Firearms Institute for transfers and also for holding the Gemtech suppressor and allowing me to shoot it before my tax stamp was settled.

Do you run a suppressor on your .22lr pistol or rifle? What is your favorite plinker? Let us know in the comments or drop a review below! And if you need ammo for that .22, check out the Best .22 Long Rifle Ammo!

Or looking to mount a red dot? Check out Best Pistol Red Dots.

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Ethan Smith is a seasoned marine veteran, professional blogger, witty and edgy writer, and an avid hunter. He spent a great deal of his childhood years around the Apache-Sitgreaves National Forest in Arizona. Watching active hunters practise their craft initiated him into the world of hunting and rubrics of outdoor life. He also honed his writing skills by sharing his outdoor experiences with fellow schoolmates through their high school’s magazine. Further along the way, the US Marine Corps got wind of his excellent combination of skills and sought to put them into good use by employing him as a combat correspondent. He now shares his income from this prestigious job with his wife and one kid. Read more >>