THREEDFLYER Posted February 2, 2018 Share #1 Posted February 2, 2018 Hello all, I am trying to identify who the initials MRT would be for on my Colt 1911A1. There are no other inspector stamps on this one and the MRT is stamped precisely where the inspector stamp usually is on the left side just in front of the grip panel. Will try to post some photos soon. I have been told some have been found marked with an MR for Mount Rainier Arsenal which was near Fort Lewis in Washington State. And I did purchase this one while I lived in Washington State a few years back. Just looking for someone who may have knowledge of the MRT stamp.....thanks! Tom Link to comment Share on other sites More sharing options...
Stormrider59 Posted February 2, 2018 Share #2 Posted February 2, 2018 Does your pistol have the Ordnance Wheel? Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 2, 2018 Author Share #3 Posted February 2, 2018 Does your pistol have the Ordnance Wheel? If you are referring to the crossed cannon stamp that I have seen on other 1911A1's on the right side of the grip frame, NO......this Colt does NOT have it. I looked very closely under high magnification and see no sign of that stamp. I know that the stamp can be very light in many cases, but this one has nothing. Tom Link to comment Share on other sites More sharing options...
Steve B. Posted February 2, 2018 Share #4 Posted February 2, 2018 I thought MRT stood for Mildew Resistant Treatment. I als thought it was stamped on leather or cloth items, not firearms, so I don’t know if this is any help. Link to comment Share on other sites More sharing options...
everforward Posted February 2, 2018 Share #5 Posted February 2, 2018 If you don’t mind, could you post the sn# of the pistol...? It will help establish what we may be looking at...thanks Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 2, 2018 Author Share #6 Posted February 2, 2018 The SN on this one is 1682XXX and is definitely in the assigned range for Colt.......I always check to be sure the frame/slide match. Link to comment Share on other sites More sharing options...
Charlie Flick Posted February 3, 2018 Share #7 Posted February 3, 2018 This is the original poster's pistol with the MRT frame marking. Regards, Charlie Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 3, 2018 Author Share #8 Posted February 3, 2018 Thanks for posting that for me Charlie, I have not figured out how to load photos on this forum as of yet. Link to comment Share on other sites More sharing options...
C500 Posted February 3, 2018 Share #9 Posted February 3, 2018 Does it have all the rest of the normal markings US property etc.? Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 3, 2018 Author Share #10 Posted February 3, 2018 Yes, all other normal markings are present.......including the P on both the slide and the frame. I have several photos posted on the Colt 1911 Forum. Link to comment Share on other sites More sharing options...
Navybean Posted February 3, 2018 Share #11 Posted February 3, 2018 I had a Remington Rand I sold a few years back that had these same marking tread below http://www.usmilitariaforum.com/forums/index.php?/topic/201589-1911a1-markings-mrt/ Link to comment Share on other sites More sharing options...
Navybean Posted February 3, 2018 Share #12 Posted February 3, 2018 I never did figure out what the markings meant. Do not believe it is mildew resistance treatment as that typically refers to treatment for canvas and this M1911A1 is not made of canvas Link to comment Share on other sites More sharing options...
doyler Posted February 3, 2018 Share #13 Posted February 3, 2018 Yes, all other normal markings are present.......including the P on both the slide and the frame. I have several photos posted on the Colt 1911 Forum. Im guessing if they dont know what the marks are on the 1911 forum it may not be able to be answered unless some new information surfaces. Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 3, 2018 Author Share #14 Posted February 3, 2018 Here is a link to the thread I started on the 1911 Forum......photos are there. https://forums.1911forum.com/showthread.php?t=907458 Link to comment Share on other sites More sharing options...
C500 Posted February 4, 2018 Share #15 Posted February 4, 2018 My national match guns are SA and T stamped but not all in a row. Maybe Mount Rainier Target tested? TEST FIRED? Link to comment Share on other sites More sharing options...
nirvana Posted February 16, 2018 Share #16 Posted February 16, 2018 I'm not sure why anyone on the other forum would jump to "lunch box gun!" as their first conclusion, but however. Based on the number of times I've heard people say that, there must be a hundred million lunchbox guns out there or something. Anyhow, given that the government rebuild programs more or less covered all weapons, I figured that searching others would be useful. Here is a garand with MRT on the stock....someone else mentions owning am "MRM" marked gun. http://forums.thecmp.org/showthread.php?t=165010&page=2 And an M1 Carbine. They conclude it is a postwar Mt Rainier rebuild, the "T" being the inspector. https://www.milsurps.com/showthread.php?t=54617 And another... http://www.uscarbinecal30.com/forum/unknown-stock-markings_topic1341.html And a website... http://www.uscarbinecal30.com/postwar.html Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 19, 2018 Author Share #17 Posted February 19, 2018 How about the crossed cannon Ordnance stamp that is typically found on the 1911A1's, are they always present or did some go out without them? I am aware that they are commonly found stamped lightly or partially stamped as I have on my Rem-Rand, Ithaca, etc. The Colt I have been inquiring about in this thread is missing this stamp entirely. Link to comment Share on other sites More sharing options...
dalbert Posted February 19, 2018 Share #18 Posted February 19, 2018 The "MRT" marking on the M1911A1 indicates arsenal rebuild at Mount Ranier. The "T" indicates which inspection supervisor was in charge of the rebuild. This is documented in Frank Iannamico's fine book on the Thompson, "American Thunder III." David Albert [email protected] Link to comment Share on other sites More sharing options...
THREEDFLYER Posted February 19, 2018 Author Share #19 Posted February 19, 2018 Still trying to get more clear answers from those of you in the know on this one....... So if you telling me that this Colt 1911A1 was rebuilt at the Mount Rainier Arsenal by someone with the initial "T" what happened to the original inspector's initials?? From what I am seeing usually the arsenal rebuild stamp was not placed over the original inspectors stamp, it was done elsewhere on the firearm. Are you saying that the original inspector stamp and crossed cannon ordnance marking was buffed off completely during the rebuild? Just trying to get some sort of handle on what's been done to this one. Link to comment Share on other sites More sharing options...
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