Rugers 22/45 MKIV 5.5

Good to hear. My MKIII 22/45 was absolutely flawless for 15K rounds despite a broken firing pin rebound spring. It’s been giving me fits lately with misfires, hangfires, and SQUIBS. I’ve put a new upper on it but it’s still not 100%. I’ve changed mainsprings, rebound springs, firing pins 2X, and bolts. Still not 100%. still awesome fun though.

I have a mk4 target stainless and it so pretty! but it needs a trigger job! lol

and my mk3 22/45, I didn’t clean it, only bore brush it and scrub with I could see with WD-40. I did that for 5 years and it ran fine! until I let it sit for 8 years, forget about it, and it was gunked up and kindda frozed up. Recently learned how to completely strip it and it running like a clock again

I started out with a Mark IV 22/45 Lite and thanks to Volquartsen I added a 5.5 inch and a 10 inch barrel. I also have a Black Mamba that I use for Steel Challenge Matches.

The Black Mamba has well over 80K rounds and is still going strong. It even eats hollow points with no problems.

I put a rifle scope on the 10 inch barrel and had lots of fun this week sighting it in. The range I go to only has 25 yards but this thing is a true tack driver.

I've been finding .22s at a good price lately so I'm pretty much stocked up for now. Hope everyone finds then when needed without paying the inflated prices.

I bought this Mark III eight years ago. I just wanted an inexpensive .22 for front porch duty. IIRC it cost right at $300. It’s the cheap model with non removable grip panels, the Hogue boot grip makes it right. Juggling optics around the Bushnell TRS25 landed on it. I don’t plink much, I mostly shoot critters roaming in my yard. My best kill to date is a ground hog in the ditch 35 yards from the porch. I like the gun, it has served me well so far.

I have the 10” Mk IV and a second 5.5” upper that makes this two-guns-in-one cool. I also did the Volquartsen trigger/hammer mod to the grip and replaced the extractors in each bolt and added a thumbrest grip.



The MkIV is such an improvement over my other Rugers when it comes to takedown and cleaning.

The .22/45 was such a good idea, creating a reliable and reasonably priced rimfire practice pistol with the big-gun 1911 feel.

Stay safe

Had the MKIV 22/45 5.5" a few years back, regretfully sold it. Recently purchased a new one. Anticipating lots of fun times with it.

Sold my MKIII immediately after shooting my MKIV, no comparison. And the above results are just more confirmation.

Don't laugh...
This thing delivers, and has a purpose.
MkII bull barrel

Have not gotten a Mk 4 yet. Recently sold my Mk iii that I put thousands of trouble free rounds through. I got an itch so I bought a Buckmark, good gun but not a Ruger Mk series. I sold it and another gun and got a Volquartsen Scorpion (got a scorching good deal on it). I saw a Mark a Mk II Gov Target with 6 7/8 barrel and grabbed it.

So currently have the Scorpion and the Mk II. The Mark II needed some work so I polished the bolt, breach face and firing pin and channel. I added return spring assembly and an exact edge extractor. That took care of the feeding issues but the trigger needed help. I installed the Volquartsen trigger, sear and sear spring. Now it shoots like a dream with a trigger pull under a pound according to my Lyman trigger gauge. The fiber optic front sight I added helps too. Its very accurate.

The Scopion just needed an optic. Currently on my second choice which is a Holosun 403b with 2moa dot. works great.

Don't have an updated pic of my Scorpion but here is a pic of my Mark II hogue grip.

I've always had a "thing" for boxed sets of matching pistols,,,
From Flintlock duelers to modern semi-autos,,,
I just love them.

About 10 years ago I had a windfall of cash fall into my lap,,,
I did a lot of research and looking at new guns,,,
I ended up buying this pair of Ruger 22/45's.

I named them Veritas (Truth) and Equitas (Justice)



Stainless steel, 5.5", slab-sides,,,
I haven't modified these guns at all.

Despite the usual gripe of "hard to clean",,,
I keep them absolutely pristine,,,
They just keep on truckin'.

I can't remember the last time I had a failure of any kind,,,
But I do try and stick with CCI Mini-Mag RNs.

When Ammo was scarce they performed well with Federal 550 bulk pack ammo,,,
As well as just about anything I could find to shoot through them.

I just wanted to add to the general praise of these pistols,,,
Ruger hit a home run with this design.

Aarond

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