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Ruger Mark IV 22/45 Tactical .22 LR 4.4" Barrel 10-Rounds

Ruger
The Ruger Mark IV 22/45 Tactical is a single-action semi-automatic rimfire pistol chambered in .22 LR with a 4.4" cold hammer-forged threaded steel barrel, an aerospace-grade aluminum receiver finished in blued steel, a black polymer grip frame with checkered 1911-style panels, and factory-installed top and bottom Picatinny rails. A fixed front sight, adjustable rear sight, ambidextrous manual safety, one-button takedown, and two 10-round magazines round out a feature-complete rimfire platform built for target shooting, competition, and plinking. For rimfire shooters who want a suppressor-ready, optics-capable .22 LR pistol with proven Ruger reliability and a modern tactical feature set, the Ruger Mark IV 22/45 Tactical is available now at GrabAGun.
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More Information

Ruger Mark IV 22/45 Tactical Features

The Ruger Mark IV 22/45 Tactical chambered in .22 LR is built around a cold hammer-forged steel barrel with a 1:16" twist rate and 1/2"-28 TPI threading, delivering ultra-precise rifling for exceptional accuracy and long barrel life across high round-count training and competition sessions. An internal cylindrical bolt construction ensures permanent sight-to-barrel alignment for higher accuracy potential, and the aerospace-grade aluminum receiver keeps the overall package rigid and lightweight at 33.30 oz. A new one-button takedown system allows the barrel-receiver assembly to tilt up and off the grip frame without tools, making field stripping and cleaning faster and more straightforward than any previous Mark-series generation. For competitive rimfire shooters and target practice enthusiasts who demand a consistent, accurate .22 LR platform that cleans quickly between sessions, the Mark IV 22/45 Tactical delivers on every count.

Factory-installed top and bottom Picatinny rails provide mounting points for optics, red dots, and accessories without additional hardware, and the threaded 4.4" barrel accepts standard .22 LR suppressors and muzzle devices with the included 1/2"-28 TPI threading. A checkered 1911-style polymer grip frame, contoured ejection port, push-button drop-free magazine release, and easy-to-grasp bolt ears round out a practical, user-friendly design that improves upon every previous Mark-series generation. Two 10-round magazines are included for immediate use. For suppressor owners, target shooters, and rimfire enthusiasts who want a fully-equipped, optics-ready .22 LR pistol with one-button takedown and a 1911-inspired grip feel, the Ruger Mark IV 22/45 Tactical is for sale at GrabAGun and delivers that precision rimfire capability out of the box.

Ruger Mark IV 22/45 Tactical Specifications

  • Manufacturer: Ruger
  • Model: Mark IV 22/45 Tactical
  • Series: 22/45 Tactical
  • Type: Rimfire Pistol
  • Caliber: .22 LR
  • Capacity: 10+1
  • Action: SAO
  • Barrel Length: 4.40"
  • Barrel Description: Cold Hammer-Forged Steel, Threaded
  • Thread Pattern: 1/2"-28 TPI
  • Twist: 1:16"
  • Receiver Material: Aluminum
  • Receiver Finish: Blued
  • Frame Material: Polymer
  • Frame Finish: Black
  • Grip: Checkered 1911-Style Panel
  • Sights: Fixed Front / Adjustable Rear
  • Safety: Ambidextrous Manual
  • Rail: Top and Bottom Picatinny
  • Hand: Right
  • Overall Length: 8.50"
  • Weight: 33.30 oz
  • Includes: 2 Ten-Round Magazines
  • Available At: GrabAGun
More Information
Optic Footprint Picatinny / Weaver
Muzzle Thread Pitch 1/2x28
Threaded Barrel Yes
Barrel Length 4.4
Caliber .22 LR
Capacity 10
Condition New in Box
Finish Per Color Black
Manufacturer Ruger
Manufacturer Part Number 40149
Model Mark IV 22/45 Tactical
Type Semi Auto Handguns
UPC 736676401499

⚠ WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV

Ruger® Mark IV™ 22/45™ Tactical Feature

Simple, one-button takedown for quick and easy field-stripping and proper chamber to muzzle cleaning. A button in the back of the frame allows the upper receiver to tilt up and off of the grip frame without the use of tools. Ergonomic bolt stop. Internal cylindrical bolt construction ensures permanent sight to barrel alignment and higher accuracy potential than conventional moving slide designs. Contoured ejection port and easy-to-grasp bolt ears allow for durable and reliable operation round after round. Accurate sighting system features adjustable rear sight and drilled and tapped receiver for Weaver- or Picatinny-style rail for easy mounting of optics. Ambidextrous manual safety positively locks the sear in the "SAFE" position when applied. Safety can be converted to left-side only with included washer. Features a conveniently located push-button magazine release on the left side of the frame. Magazine drops free on release for faster reloading. Magazine disconnect prevents discharge when the magazine has been removed. Also includes: two, 10-round magazines. Threaded barrel and top and bottom picatinny rails for attaching tactical accessories.

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Questions And Answers

does this item come with two magazines?

Asked by Anonymous on Mar 21, 2019

Yes. Mine did. Love the gun. Mags so so. Highly rec the volquartsen stainless button upgrade for the mags. Cheap and very helpful.

Answered by Anonymous on Mar 21, 2019

Been some time since I bought mine but I believe I got 2 magazines. According to Ruger website it comes with two magazines.

Answered by Anonymous on Mar 21, 2019

Yes the pistol comes with two 10 round magazines.

Answered by Anonymous on Mar 21, 2019

Yes, this pistol comes with 2 ten round mags.

Answered by Anonymous on Mar 22, 2019

Yes it does come with 2 magazines.

Answered by Anonymous on Mar 21, 2019

Yes it comes with two mags.

Answered by Anonymous on Mar 21, 2019

Yes it comes with 2 mags

Answered by Anonymous on Mar 21, 2019

Yes it does.Enter

Answered by Anonymous on Mar 21, 2019

2 mags

Answered by Anonymous on Mar 21, 2019

Yes

Answered by Anonymous on Mar 21, 2019

Can the rails be removed?

Asked by Anonymous on Oct 4, 2018

Yes, both top and bottom rails can be removed and plugged with screws.

Answered by Anonymous on Oct 4, 2018

Yes they can. The top has 3 screws and the bottom has 2.

Answered by Anonymous on Oct 4, 2018

Yes, both rais can be removed

Answered by Anonymous on Oct 4, 2018

Yes. You can request new screws from Ruger to fill the remaining screw holes and have the heads flush.

Answered by Anonymous on Oct 4, 2018

I know for sure the bottom rail can. You will leave behind screw holes

Answered by Anonymous on Oct 4, 2018

I removed the top rail, but you have to plug the holes with threaded inserts, available from ruger.

Answered by Anonymous on Oct 4, 2018

Yes you can. Takes an Allen wrench. Two scenes on top and two on the bottom rail. Enter

Answered by Anonymous on Oct 6, 2018

Top rail can be yes.

Answered by Anonymous on Oct 4, 2018

Does it have a threaded barrel?

Asked by Anonymous on Mar 19, 2026

Yes, 1/2x28

Answered by Anonymous on Mar 19, 2026

Yes! “ 1/2"-28 threaded barrel with thread protector allows for the attachment of popular muzzle accessories”

Answered by Anonymous on Mar 20, 2026

Yes, it has a thread protector on the end, seen in the picture, that screws off.

Answered by Anonymous on Mar 21, 2026

Yes. There is a nut over the end that comes off easily

Answered by Anonymous on Mar 19, 2026

Yes this particular model does

Answered by Anonymous on Mar 20, 2026

Yes

Answered by Anonymous on Mar 19, 2026

DOES IT HAVE A STEEL SLIDE , BARREL  ?   NOT SURE ON ONE WITH BUYING ALUMINUM SLIDE ?

Asked by NTexas on Feb 5, 2022

Not yet answered.

Reviews

Rated 4.9 out of 5 stars based on 71 reviews.

  • 5 stars: 65 reviews (92%)
  • 4 stars: 6 reviews (8%)
  • 3 stars: 0 reviews (0%)
  • 2 stars: 0 reviews (0%)
  • 1 stars: 0 reviews (0%)

super fun, replace the trigger for sure

Rated 4 out of 5 stars by Anonymous on Nov 12, 2018

So easy to handle and clean. The factory black on black sights were super hard for me to see so I just put a drop of bright orange paint on the front site and now it's easy to find. Factory trigger doesn't do the pistol justice so I replaced the trigger with the Volquartzen accurizing kit. It took forever for me to finally install it correctly, but totally worth it. That sucker's trigger pull is super light and crisp now. She's a fun go-to for walks in the woods, small game, and plinking. Easy to just screw on your favorite suppressor, too. Yep, that's about all I have to say about that.

Excellent price

Rated 5 out of 5 stars by Anonymous on Jan 20, 2019

Best price I’ve found. Works well with suppressors

Review

Rated 5 out of 5 stars by Anonymous on Dec 4, 2018

Great gun, I have put over 600 rounds without an issue

Great gun but a odd quirk

Rated 4 out of 5 stars by Anonymous on Jul 31, 2018

this is a must have if you own a 22 suppressor. It’s a accurate, reliable, quiet and fun pistol but the one I got had very sharp edges on the bolt which cut me quite a few times. I added a aftermarket charging handle and the issue was resolved.

Great little plinker

Rated 5 out of 5 stars by Anonymous on Jan 14, 2019

I got this to be an eventual suppressor host when I get the money together to buy one (and the ridiculous stamp). So far it's been a great buy. Got it for a reasonable price and it seems to work with pretty much every brand of cheap 22 ammo I've fed it so far. Decently accurate and dependable. I love the way it easily breaks down and goes back together and love how there are tons of upgrades for it. I threw on a light/laser combo for now, but have a nice micro red dot coming. I still kinda prefer my S&W Victory 22 over this one, but I enjoy having both.

Awesome. 22LR pistol!

Rated 5 out of 5 stars by Anonymous on Apr 14, 2022

Awesome full sized .22LR pistol. Suppressor Ready out of the box and ready for optics as well. A great handgun made even greater with a Volquartsen trigger kit.

great gun.

Rated 5 out of 5 stars by Anonymous on Jan 17, 2019

Just shot it for the first time and it ran perfect thru about 400 rounds with several different brand bullets. Very happy with my purchase.

Flawless in the first 400 rnds!

Rated 5 out of 5 stars by Anonymous on Nov 21, 2018

400 rounds suppressed so far and not a single malfunction. Planning to buy a couple more for my kids!

Review

Rated 5 out of 5 stars by Anonymous on Feb 15, 2022

Extremely well made and highly supported by aftermarket parts and accessories. Disassembly/re-assembly is extremely easy facilitating ease of maintenance and modification if so desired. Fit and finish are immaculate. Safety has a very positive detent and has white “safe” marking and red “fire” marking. The factory trigger is good, action is smooth, and the sights are exceptional. With the added ejection spring the magazines are ejected with positive spring force.

Review

Rated 5 out of 5 stars by Anonymous on Nov 25, 2021

Works flawlessly with both supersonic and subsonic and with or without a suppressor. Couldn’t be happier!

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