f> MARK II MAGS in a MARK I ???? - Ruger Forum

Ruger Forum

MARK II MAGS in a MARK I ????

This is a discussion on MARK II MAGS in a MARK I ???? within the Gunsmithing forums, part of the Firearm Forum category; HI will they work, before i buy some i would like to know thanks john...


Go Back   Ruger Forum > Firearm Forum > Gunsmithing

Reply
 
LinkBack Thread Tools Display Modes

Old June 12th, 2011, 05:20 AM   #1
 
Join Date: May 2011
Location: NW OHIO
Posts: 20
22eley is on a distinguished road
MARK II MAGS in a MARK I ????

HI will they work, before i buy some i would like to know thanks john



22eley is offline  
Advertisements
Old June 12th, 2011, 05:33 AM   #2
 
Lewis128's Avatar
 
Join Date: May 2011
Location: Missouri
Posts: 277
Lewis128 is on a distinguished road
I can confirm that 22/45 mags work in the newer MKIII 22/45, which I posted in a previous thread.
Another person posted on that thread that they'd swapped bases between a MKIII and a MKIII 22/45, and THAT worked as well.
If you decide to chance it, please let us know. If it doesn't work, though I suspect it will, you can always sell it. They sell on GunBroker.com all the time.

You could call around to local gun shops till you find one with a MKII. Take your gun in and see if it fits. If it locks in place properly, go ahead and buy one (magazine, not gun) range test it for function, then buy more as desired.

Last edited by Lewis128; June 12th, 2011 at 05:38 AM.
Lewis128 is offline  
Old June 12th, 2011, 06:08 AM   #3
 
Join Date: Jun 2010
Location: Virginia Beach, VA
Posts: 361
Tommyhof is on a distinguished road
Yes however you have to reverse the button, remove the bottom and reserve pretty simple, and you can put it back to a MKII mag if required.
Tommyhof is offline  
 
Old June 12th, 2011, 06:44 AM   #4
 
Redleg's Avatar
 
Join Date: Mar 2011
Location: Huntington Beach, CA
Posts: 3,826
Redleg will become famous soon enoughRedleg will become famous soon enough
I have a Mark I, a Mark II, and a Mark III. My observations about magazine interchangeability is as follows:

Mark IIs and Mark IIIs all can use the same magazines. My Mark II magazines have a silver eagle on the base, the Mark III magazines have a black eagle at the base. There is no other difference that I can discern and functionally they are identical.

Mark III magazines do NOT work in the Mark I, even if you switch the button to the correct side. It appears that the feed angle is slightly different. In any case my "Standard" (circa 1966) will not feed well with a Mark III magazine. I do not think that this is a function of the particular magazine that I tried to use, but I may be mistaken.

Has anyone out there actually used a Mark III (or a Mark II) magazine in a Standard or Mark I and had it feed well? My one attempt to do this was a failure.
Redleg is offline  
Old June 12th, 2011, 07:10 AM   #5
Retired Moderator & Gunsmith
 
Iowegan's Avatar
 
Join Date: Aug 2006
Location: CB, IA
Posts: 11,967
Iowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to behold

Awards Showcase

Redleg, Sorry, your information is not correct. The MK III magazine has a lip for the release button. You may be able to cram it in a MK II but it won't line up right. MK II magazines do not have the lip so they will not secure in a MK III. The two magazines look identical except for the lip.

MK II magazines will work in all MK I or Standard pistols. Early models had the loading button on the right, later models had the loading button on the left. The MK II magazine has a reversible loading button so as long as it is on the correct side, it will work fine plus it is 10 rounds versus the older9 round MK I mags.
Iowegan is offline  
Old June 12th, 2011, 08:29 AM   #6
 
Join Date: Feb 2008
Location: North Carolina
Posts: 1,015
rantingredneck is on a distinguished road
Quote:
MK II magazines will work in all MK I or Standard pistols. Early models had the loading button on the right, later models had the loading button on the left. The MK II magazine has a reversible loading button so as long as it is on the correct side, it will work fine plus it is 10 rounds versus the older9 round MK I mags.
This ^.

In addition if you take the grip panels off your MK I and you see "A100" stamped into the gripframe then yours is one of the later frames that will accomodate the MK II mags without reversing the button. Not sure which year this switched, but my MK I target circa 1979 is so stamped.
rantingredneck is offline  
Old June 12th, 2011, 08:43 AM   #7
Retired Moderator & Gunsmith
 
Iowegan's Avatar
 
Join Date: Aug 2006
Location: CB, IA
Posts: 11,967
Iowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to behold

Awards Showcase

rantingredneck, Yes, the A-54 grip frame with the loading button on the right, was made from 1949 to 1971. The A-100 grip frame, made from 1971-1982, has the loading button on the left. Both had 9 round magazines.
Iowegan is offline  
Old June 12th, 2011, 08:44 AM   #8
 
Join Date: Feb 2008
Location: North Carolina
Posts: 1,015
rantingredneck is on a distinguished road
Thanks for that, I thought I'd read somewhere that the switch was sometime in the early 70's but I couldn't seem to find that info anywhere earlier.
rantingredneck is offline  
Old June 12th, 2011, 10:03 AM   #9
 
Join Date: May 2011
Location: NW OHIO
Posts: 20
22eley is on a distinguished road
Thanks to all for there help. now all i need is a pair of factory WOOD mark 1 grips and i will be happy. thanks john
22eley is offline  
Old June 13th, 2011, 03:50 AM   #10
Ed Mann
 
edlmann's Avatar
 
Join Date: Jun 2009
Location: lovely downtown Central Florida
Posts: 402
edlmann is on a distinguished road
Quote:
Originally Posted by rantingredneck View Post
Thanks for that, I thought I'd read somewhere that the switch was sometime in the early 70's but I couldn't seem to find that info anywhere earlier.
You'd think we'd have established a serial number for lastA54/firstA100.

Don't think I've seen this anywhere, maybe because the grip frames are so easy to swap.
edlmann is offline  
Old June 13th, 2011, 05:24 AM   #11
 
Join Date: Jun 2010
Location: Virginia Beach, VA
Posts: 361
Tommyhof is on a distinguished road
Quote:
Originally Posted by 22eley View Post
Thanks to all for there help. now all i need is a pair of factory WOOD mark 1 grips and i will be happy. thanks john
I bought a pair from Numrichs 20+ something, after market type, becareful though I have the older standard (A54) the grips are different.
Tommyhof is offline  
Old June 13th, 2011, 05:53 AM   #12
 
Redleg's Avatar
 
Join Date: Mar 2011
Location: Huntington Beach, CA
Posts: 3,826
Redleg will become famous soon enoughRedleg will become famous soon enough
Quote:
Originally Posted by Iowegan View Post
Redleg, Sorry, your information is not correct. The MK III magazine has a lip for the release button. You may be able to cram it in a MK II but it won't line up right. MK II magazines do not have the lip so they will not secure in a MK III. The two magazines look identical except for the lip.
Last weekend I put over 450 rounds though a Mark II using Mark III magazines. No cramming was involved; the fit of the magazines was the same as in the Mark III as far as I could tell. My gunsmith also said they would work fine. They did. That's all I know. I guess seeing is believing. Mark III magazines (I have 14 of them) have worked flawlessly in my Mark II; indistinguishable from the Mark II magazines that it came with.

As previously posted, the Mark III magazine I tried in my "Standard" did not fit or work satisfactorily.

Last edited by Redleg; June 14th, 2011 at 01:07 AM.
Redleg is offline  
Old June 14th, 2011, 09:30 AM   #13
Ed Mann
 
edlmann's Avatar
 
Join Date: Jun 2009
Location: lovely downtown Central Florida
Posts: 402
edlmann is on a distinguished road
Quote:
Originally Posted by 22eley View Post
HI will they work, before i buy some i would like to know thanks john
Yes.
Quote:
Originally Posted by Tommyhof View Post
Yes however you have to reverse the button, remove the bottom and reserve pretty simple, and you can put it back to a MKII mag if required.
Only needed if the Mark I was made before the '71 changeover to the A100 grip frame.
edlmann is offline  
Old June 23rd, 2011, 10:26 AM   #14
 
Join Date: Mar 2010
Location: Northwestern Wisconsin
Posts: 152
D A Wood is on a distinguished road
Mark II magazines work just dandy in both the A54 and A100 early frames, so long as you move the follower button to the appropriate side. I've also used the Mark III magazines in the A54 and A100 frame RST4 and Mark I pistols that I have without the aforementioned "cramming" for insertion process.



This is the RST4 (circa 1970) that I used a Ruger Mark III magazine in and the only cramming I did was to cram a punch into the floorplate detent to get the floorplate off so I could reverse the follower button. The magazine worked just fine in this pistol and went into the grip frame easily.



This Ruger Mark I (circa 1979) was also tried with a Ruger Mark III magazine , which can be seen reclining next to the pistol, and it went into the frame "like a duck's foot in mud", no cramming involved here either. Rounds fed and fired just fine out of both pistols when using the Mark III magazines. The ONLY hiccup (and it is a slight one) involved with using the Mark III magazines comes with removing the mags. The leading edge of the magazine latch on the RST4 and Mark I is a bit sharper than the magazine latch on the Mark II pistols, so it wants to catch in the step where the floorplate and the backside of the magazine meet. There is NO step on the RST4 and Mark I magazines backsides, it's pretty smooth. This isn't a big deal though, as all you need to do is push the mag. latch a little bit further back and the mag. will come out easily. OK, WHY then would you want to know that a Mark III magazine will work OK in the RST4 or the Mark I? Well, what if, by chance you get all the way to the range and find out that you brought your Mark I Target but in your haste to get out the door you grabbed the magazines for your Mark III Competiton Target. Not to worry, go shoot.

Last edited by D A Wood; June 23rd, 2011 at 10:32 AM.
D A Wood is offline  
Old June 23rd, 2011, 11:42 AM   #15
Retired Moderator & Gunsmith
 
Iowegan's Avatar
 
Join Date: Aug 2006
Location: CB, IA
Posts: 11,967
Iowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to beholdIowegan is a splendid one to behold

Awards Showcase

Redleg, Yoiu obviously have a "generous" magazine well in your MK II. With most MK IIs, MK III mags won't seat without forcing them and if they do seat, the "lip" on the front left of MK III magazine forces the top to the right where it does not align with the feed ramp on the barrel. This could result in frequent jams and could damage the MK III mag where it won't stay latched in a MK III receiver. That same "lip" is what prevents a MK III mag from seating in a MK I or Standard. BTW, if you grind the lip off, those MK III mags will work just fine in a MK I or Standard .... of course they will no longer latch in a MK III receiver. In other words, Ruger did not design MK III mags to be compatible with MK Is or MK IIs, even though they may work in some guns.
Iowegan is offline  
Reply

  Ruger Forum > Firearm Forum > Gunsmithing


Search tags for this page

mark i clip in mark ii

,

mark ii magazine in mark i

,

ruger mark 1 magazine compatibility

,

ruger mark i

,

ruger mk i mag in mk ii

,

using mark ii mag in mark i

,

will a ruger mark ii magazine fit in a mark i

,
will a ruger mark ii magazine work in a mark i
,
will mark ii magazines fit mark i
,

will ruger mark ii magazine fit mark i

,

will ruger mark ii mags fit a ruger mark i

,

will ruger mk1 take mk2 mags

Click on a term to search for related topics.

Thread Tools
Display Modes


Similar Ruger Forum Discussions
Thread Thread Starter Forum Replies Last Post
Mags and Grips for A-100 Mark I Gymwear New Users 16 November 25th, 2011 10:45 AM
For Trade: S&W 22A mags for MARK III magazines or sell 22eley Parts & Accessories 0 June 27th, 2011 05:44 AM
Ruger Mark II Complete makeover into competition Mark III crmodels Ruger Rimfires 4 May 21st, 2011 06:24 PM
Mark I, Mark II & Mark III parts interchangeability FloydRP Ruger Rimfires 6 March 14th, 2011 07:39 AM
Mark 1 Mags HELP!!! JimB120 Maintenance 9 December 30th, 2010 05:29 AM

Top Gun Sites Top Sites List
Powered by vBulletin 3.8.7
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1
Copyright © 2006 - 2017 Ruger Forum. All rights reserved.
Ruger Forum is a Ruger Firearms enthusiast's forum, but it is in no way affiliated with, nor does it represent Sturm Ruger & Company Inc. of Southport, CT.