MKIV critical spare parts?

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Bruce in WV

Single-Sixer
Joined
Feb 3, 2005
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Near Harpers Ferry WV
MKIV critical spare parts?

What are the most critical spare parts I should have on hand at the cabin in the woods to keep my MKIV up and running?

Viewed from a slightly different perspective, is there a list of parts that need to be replaced most often?
 

woodsy

Blackhawk
Joined
Jan 5, 2012
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799
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Seymour, CT
I have a Mark 1, and after more than 50,000 rounds it still does not NEED anything. Although I did make custom grips for competition. I guess it might depend on the similarities between it and the Mark IV. I did read on another forum that there is an O-ring used in its quick-disassembly feature which does not last forever.
 

Bruce in WV

Single-Sixer
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Feb 3, 2005
Messages
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Near Harpers Ferry WV
Good start. Almost all of my spare part never get used, but I live at the end of the pavement and need to be self-sufficient with parts and common repairs.

I did more research and found that a well known MK series supplier sells a combined emergency parts/ upgrade kit that contains 'Firing Pin - x1, Extractor - x1, and Firing Pin Rebound Spring - x5'.
How about other parts critical to keeping it running? Does nothing ever fail? Any gunsmiths here that see lots of guns come through their shops that can offer some practical input?
 

Bruce in WV

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Follow up question, pls:

Is there a shop manual, or a detailed strip description, for the MK series that includes the MKIV? (assume no internet, so paper copy or pdf)
 
Joined
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Bruce in WV said:
Follow up question, pls:

Is there a shop manual, or a detailed strip description, for the MK series that includes the MKIV? (assume no internet, so paper copy or pdf)

https://ruger-docs.s3.amazonaws.com/_manuals/Mark-IV-Pc4tS28s.pdf
 

Johnnu2

Buckeye
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Jun 26, 2003
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NYS
I have found it helpful to download youtube assembly/disassembly videos and then transfer them to DVD. Without internet access you can still view your videos (assuming you have electricity and a video player of some type).

For the most part, I have always kept some spare parts for just about everything I own.... Again, for the most part, never used any of them... :shock:
BUT, THERE'S ALWAYS A FIRST TIME

J.
 

Rumrunner

Hunter
Joined
Jun 19, 2006
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4,129
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Midwest Illinois
I bought a bunch of spare parts for my MK I and MK II's and they set in a drawer until I sold my guns. Now I have a MKIV, and figure at my age nothing will wear out before I do. I would get spare magazines.
 

CHEVYINLINE6

Single-Sixer
Joined
Nov 29, 2022
Messages
103
Location
Vancouver Washington
While it's hard to wear out a Ruger Mark series pistol, it's good to have extra parts on hand. Ever drop a small part and lose it ? In 40+ years in owning Ruger firearms I have only had to replace a extractor on a early Mark 1. I have bought many extra parts over the years and 2 days ago just ordered extra parts for a Mark 4 that I just bought and am still waiting for it to pass the background check before I can pick it up. I know one thing that many of the parts for the older guns are no longer available and are worth a lot more now when I bought them. I even bought some AMT Lightning pistol parts that fit Ruger Mark series guns. To me the parts are better than money in the bank. I have also been buying Ruger Mark series related gunsmithing tools.

INLINECHEVY6.
 

contender

Ruger Guru
Joined
Sep 18, 2002
Messages
22,138
Location
Lake Lure NC USA
I agree with the idea of a spare gun,, instead of worrying about just parts. Sometimes parts can get "mis-placed" or lost etc. An entire gun isn't as likely to get lost,, AND it's an immediate fix to a problem. Kinda like the old adage; "The fasted reload is a second gun!"

That said,, I too have a parts bin of MK series parts,, and it gathers dust.
 

Mobuck

Hawkeye
Joined
Dec 25, 2007
Messages
7,820
Location
missouri
I have 4 or 5 22/45 III pistols. The only spare parts I have is a takeout main spring and guide and a few parts that were replaced with the VQ accurizing kit.
 

Johnnu2

Buckeye
Joined
Jun 26, 2003
Messages
1,965
Location
NYS
I usually lose springs when I take my guns apart... I keep a couple of different Brownells spring packages (all different diameters and tensile strengths); and in some cases I have a few specific gun springs stashed. I've actually never had a gun "break" other than my Taurus PT-145 (3 times).... I traded it for a SA-XDS :)
For off-the-beaten path considerations, I second the vote for a spare Mk IV (parts gun :) ).

J
 

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