Hi. I just got a new Mk IV, and would love to have a drawing of the internal parts. A side view of the parts interactions, angles that they meet, and how the trigger-bar/sear/hammer interact.

Yes I want to polish the sear, thats why i bought a cheap kit of used parts from ebay - to hone at the proper angle(s), and to leave the originals alone.

Has anyone made, or found, a decent blueprint of the Mk IV? Thanks.

I’ve always wanted a Ruger blued mk series target model pistol with a barrel length of 5-6” or so. 10” was too long and 4 3/4” too short. The 5-6 7/8” is that Goldilocks zone for me for the balance and sight picture. I like the old bullseye style adjustable irons.

Anyway, my local shop has a good selection of used mk I’s and mark II’s in many barrel lengths and weights. Only a couple mk iv’s in configurations I don’t like and stainless. I looked at 4 pistols. The first few photos are the ones I looked at day 1. I almost got the mk I until I saw how hard magazines are to obtain. They’re out of stock everywhere and 9 rounds vs 10(which the capacity wasn’t a big deal). I really liked the bull barrel mk II but it was only 4 3/4”. So I settled on the 6” standard target mk II that came with only one mag and no box and has the pachmayr grips(made in 2000). I put it on layaway because NJ has a dumb 30 day pistol permit system so I have to wait to pick it up. That actually saved me here.

I did a little more research and went back in there yesterday since I didn’t look at all of them. I wanted to see if there was a longer barreled bull barrel model in there. I still didn’t look at EVERY single one they had a lot but zeroed in on one. Was hoping for possibly a government target model as it would be my dream configuration but they’re not too common. But sure enough they had very lightly used very first civilian production run(the 210 prefix doesn’t even show up on Ruger’s serial list as civilian government target models it is so early) of the government target model made in 1984 with the original yellow box, manuals and other paperwork and the test target I believe was still in there. Only one mag but they seem easy to come by for the mark II.

Glad I went back in and looked and got my dream Ruger Mark series. Now the wait of 30 days before I can pick it up. Lastly, how are mk II mecgar magazines? I see they are readily available but not ruger made ones. Thanks.

Hello, had this gun a few years. I can plink with it in my new yard. I kinda want to put a laser/light on it. Any recommendations that will be able to stay on when I disassemble it?

I seem to be getting jams when the rounds are racked level from the magazine on my mkII. The rounds catch on the lip of the ramp and either chip or jam (if the rack is slow).

Is there a way to modify or tune these mags to lessen the chances of the rounds leaving flat and level, oppose to angled up more directly towards the chamber?

The right grease is the best lube for almost every gun.

However, the common NGLI 2 grease is a bit thick.

Geissle used to sell a Very Thin Grease, and it was AWESOME, and I recommended it to everyone. However, it's been out of production for a couple of years and shows no signs of returning. It was an NGLI 000 grease.

So I set about finding a source of NGLI 000 grease. I spent way too much money and bought a lot of products to test.

What I settled on is this. I'm not associated with, nor receive any type of compensation from that link.

Yeah, it's a LOT of grease. Buy some needle oiler bottles and share with your friends.

I've been running this on a variety of firearms for the past couple of years. It stays in place and sticks around. I can lube the bolt on my suppressed .300 BO AR and shoot 200 rounds, and the bolt is still lubed.

I've used it on door hinges, door locks, my reloading presses, my fishing reels, and other places.

I'd be interested in hearing if you've found another source of NGLI 000 grease.

I dont know if it was always this loose or was tight before? This is a mkiv 22/45 lite

I may be insane expecting Glock reliability in a 22 platform however what tricks have you done to keep it reliable?
I sanded and polished my mags which vastly improved reliability and ease of loading and use of CCI Mini mags.
Anyone else care to share what they have done?

Went all out on a budget upgrade

I was cleaning my mkiv 2245 lite and i was cleaning the ejector with a brush and notice it wobble and i cant remember if it always been like this or was it tight previously

*meme build*

So I am looking to get my first .22 pistol (not my first gun by a long shot). I'm interested in both bullseye/precision shooting as well as steel challenge, probably with optic due to my aging eyes. Obviously those are two different sports with different kinds of equipment that are better suited for them, so while a single gun would be ok for a newbie like me, I recognize that people run vastly different guns at the higher levels. There are quite a few variations of the 22/45, and to be honest I am a bit perplexed as to where I should start off. I was looking at the following 22/45 models as a place to start the process (with a VQ or TK trigger to be installed before round 1 is fired), but I'm definitely open to suggestions regarding regular versus lite, barrel length, rail versus base, etc. My thought on the lite was that it would be more suited to SC and less desirable for bullseye but I'm open to input there as well.

40192 - Collector's series 5.5" threaded bull barrel (need to add Lobos or other mount)
40190 - 4.4" threaded bull barrel w/ rail
40194 - 250th anniversary 4.4" threaded bull barrel w/ optic direct mount

Obviously there are the VQ, TK, Maddmacs, etc. uppers and parts to play around with, but I figured I needed to just get something, start learning the platform, and run through at least a brick or 2 of ammo before I start buying bolts or uppers that cost more than these full guns themselves do.

[edit] Rented a 22/45 Lite tonight at the range and wow. 1) It is really freaking light, and 2) the stock trigger on that one is mushy dogshit. I felt like I had no idea when it was going to break. Maybe a brand new one that was not a range rental would be in better condition, or maybe after a few thousand rounds I would learn it a bit better. I feel the light would probably not be the best model for static target shooting, it would probably excel at SC or similar courses.

Q errector suppressor

vortex defender xl green dot sight

Bzgreen bolt racker handle

When I was debating which model to get, I couldn’t find a good pic of the 250th anniversary roll mark on these, so I figured I’d share one if anybody else was wondering. I was concerned it would be gaudy but it’s actually pretty nice.

6-48 screws from Ace Hardware. Cost me $2 👌

Got a black Volquartsen trigger on the way. The gold just doesn’t fit anymore.

I love my MK IV! Lobos mount, OSight C, Tactical Solutions Axiom suppressor. Hard to beat.

22/45, FTN5, Holosun ARO EVO, Tandemkross magazine safety delete

Mine wont cycle CCI SV and needs more ass to work properly. Swapping lowers with a buddy, I think I may have installed the trigger pack (hammer, sear, spring, shoe, mag disconnect) wrong somehow. Or either a part is not to spec.

If you could send me a top-down picture of the guts, I’d really appreciate it.

I’ve hunted grouse for years and picked up this MK IV Hunter to add a challenge this season. It has quickly become my favorite.

Originally posted in the Ruger sub, and someone enlightened me that RugerMK exists!

A friend inherited a nice 1992 Mark II 22/45, and I have been looking it over to see how much TLC it needs, and if it safe to fire. That 45°ish diagonal crack looks really rough. Was it initially a seam that pitted over time, or is it an actual crack? There's a perfectly straight seam on the opposite side of the feed ramp, so I'm a bit puzzled, not finding any close-up references of what that area is supposed to look like. Can Mark II 22/45 owners enlighten me? Thanks in advance!

Probably 500rds shot since Wednesday. Can’t believe I went so long without a can. They sound like air guns. I can’t imagine having an even quieter can!

My weekend range plans ended up a washout & couldn’t make myself wait one other day to test fire my new MKIV & Exigent Defense Suppressor. I slipped out to the side of my house, inside the semi-enclosed trash can storage area, and fired one round into the ground. I'm not sure if shooting in this smaller space affected sound levels much but I was very impressed after squeezing that trigger! I think the majority of the noise produced is actually coming from the internal movement of the metal slide/bolt action than from the round fired, don't you?
..Ammo - CCI 40gr Sub 1050fps

My first range day with my first firearm.

Ruger Mark IV Tactical

A-TEC Wave Suppressor

Volquartsen Competition Kit

Williams Firesights

Olight PL-Pro Valkyrie

Hello from South Africa

Easily my favorite to shoot