airborne118 Posted January 8, 2013 Report Share Posted January 8, 2013 Is there a gunsmith or somone qualified who can help me get ez-pull springs installed on my Semi Auto Thomson? Link to comment Share on other sites More sharing options...
T Hound Posted January 9, 2013 Report Share Posted January 9, 2013 1. You can ask Deerslayer who I believe is a gunsmith who specializes in Thompsons.2. You can do it yourself. First go to AIG "American Institute of Gunsmithing" and buy their Thompson Armourers DVD which is excellent. That should give you enough knowledge to be able to know how to put them in yourself. But, quite frankly, if you are able to do a field disassembly including taking out the present springs and bolt then you SHOULD be able to put the EZ springs in yourself. Hope that helps. 1 Link to comment Share on other sites More sharing options...
Gio Posted January 9, 2013 Report Share Posted January 9, 2013 I agree with above the EZ springs are not hard to install. If your gun has had some rounds thru it you should be ok. I don't know who has the springs for sale at this time. Frank Link to comment Share on other sites More sharing options...
airborne118 Posted January 9, 2013 Author Report Share Posted January 9, 2013 Thanks for the link, I think I will pick that video up. I have the springs, I just needed the help.... Link to comment Share on other sites More sharing options...
airborne118 Posted January 12, 2013 Author Report Share Posted January 12, 2013 1. You can ask Deerslayer who I believe is a gunsmith who specializes in Thompsons.2. You can do it yourself. First go to AIG "American Institute of Gunsmithing" and buy their Thompson Armourers DVD which is excellent. That should give you enough knowledge to be able to know how to put them in yourself. But, quite frankly, if you are able to do a field disassembly including taking out the present springs and bolt then you SHOULD be able to put the EZ springs in yourself. Hope that helps. I just got the AIG "American Institute of Gunsmithing" and it is fantastic, answered all my questions! Link to comment Share on other sites More sharing options...
T Hound Posted January 12, 2013 Report Share Posted January 12, 2013 Glad we could help brother! Let us know how the springs work out. Would liketo know if it is worth it myself. But quite frankly if you rack back the boltenough it loosens up a bit anyway. Before that it used to leave my skin alittle raw. Link to comment Share on other sites More sharing options...
reconbob Posted January 15, 2013 Report Share Posted January 15, 2013 Yes, if you have the skill to field strip your gun - remove the trigger frame and takethe bolt out of the receiver - then you have the ability to change the springs. You justreassemble using the replacement springs. The urethane butfer slides onto the recoilspring guides with the "F" facing the bolt. You may have to trim the buffer a little witha razor knife to get it to fit in the receiver. Bob 1 Link to comment Share on other sites More sharing options...
airborne118 Posted January 21, 2013 Author Report Share Posted January 21, 2013 Bob, I installed it, very easy, I want to thank you and Deerslayer for your help!V.R Link to comment Share on other sites More sharing options...
Cobretti Posted February 1, 2013 Report Share Posted February 1, 2013 I also installed Deerslayer's spring kit in my M1 SBR - HUGE difference. I also have the extended bolt handle that makes it even easier. It was ridiculous before, I can't believe they ship them like that! Link to comment Share on other sites More sharing options...
jhm Posted February 2, 2013 Report Share Posted February 2, 2013 I would like to install that spring kit on my M1SB, would like to know if it is hard on the reciver! Thanks in advance.... Link to comment Share on other sites More sharing options...
airborne118 Posted February 2, 2013 Author Report Share Posted February 2, 2013 (edited) Went to the range today and had a FTF, I suspect it is the ez pull springs.....I know its not the ammo......puzzling... Edited February 2, 2013 by airborne118 Link to comment Share on other sites More sharing options...
T Hound Posted February 3, 2013 Report Share Posted February 3, 2013 (edited) Went to the range today and had a FTF, I suspect it is the ez pull springs.....I know its not the ammo......puzzling...It is my understanding that this was a possibility. Was the primer even dented a little? More details brother, giveus some details to consider. :popcorn: Edited February 3, 2013 by T Hound Link to comment Share on other sites More sharing options...
orrwdd Posted February 3, 2013 Report Share Posted February 3, 2013 I received my EZ Pull springs from ReconBob today. I just installed them and it makes a huge difference. I notice that the end of the hammer spring pilot no longer sticks out of the back of the receiver, but us slightly recessed now. I guess that makes sense, since the kit added the buffer inside and it holds the pilot further into the receiver. Going to shoot it tomorrow and see how it goes. Bill Link to comment Share on other sites More sharing options...
T Hound Posted February 3, 2013 Report Share Posted February 3, 2013 I received my EZ Pull springs from ReconBob today. I just installed them and it makes a huge difference. I notice that the end of the hammer spring pilot no longer sticks out of the back of the receiver, but us slightly recessed now. I guess that makes sense, since the kit added the buffer inside and it holds the pilot further into the receiver. Going to shoot it tomorrow and see how it goes. Bill If you get any FTF's make a note of the conditions such as the whether the primer is dented, etc. etc. then let us know. Link to comment Share on other sites More sharing options...
airborne118 Posted February 3, 2013 Author Report Share Posted February 3, 2013 I was getting a solid primer strike......I am puzzled Link to comment Share on other sites More sharing options...
Chief762 Posted February 3, 2013 Report Share Posted February 3, 2013 Factory ammo or handload? Bad primer or no powder charge? Stuff happens. Disassemble suspect round and see. Link to comment Share on other sites More sharing options...
T Hound Posted February 3, 2013 Report Share Posted February 3, 2013 (edited) Factory ammo or handload? Bad primer or no powder charge? Stuff happens. Disassemble suspect round and see. Definitely not a good idea to disassemble the round. The primers are less stable. If the primer was obvously struck, as opposed to a very light dent, but the round did not fire then it wasn't the springs, it was the round. On a ftf you should always wait for about a minute to make sure the round is not delayed. Thenremove it. Edited February 3, 2013 by T Hound Link to comment Share on other sites More sharing options...
deerslayer Posted February 6, 2013 Report Share Posted February 6, 2013 The edges of a Kahr firing pin could be used as a reasonable file substitute and they should be smoothed down before installing springs. On a newish gun you can take the bolt apart and polish the firing pin edges and their related bearing surfaces inside the bolt, or shoot it a few hundred times with original gorilla springs to smooth the relevant surfaces down.... If you hand cycle the bolt slowly and it feels like you left the gun in the sandbox, then they need smoothing. I had one gun that would actually just stay about halfway open if you slowly closed the bolt (from these friction forces).. Link to comment Share on other sites More sharing options...
airborne118 Posted February 9, 2013 Author Report Share Posted February 9, 2013 The edges of a Kahr firing pin could be used as a reasonable file substitute and they should be smoothed down before installing springs. On a newish gun you can take the bolt apart and polish the firing pin edges and their related bearing surfaces inside the bolt, or shoot it a few hundred times with original gorilla springs to smooth the relevant surfaces down.... If you hand cycle the bolt slowly and it feels like you left the gun in the sandbox, then they need smoothing. I had one gun that would actually just stay about halfway open if you slowly closed the bolt (from these friction forces).. I will try that for sure, thanks for the advice..... Link to comment Share on other sites More sharing options...
orrwdd Posted February 11, 2013 Report Share Posted February 11, 2013 (edited) I fired my 1927 A1 with the EZ pull springs the other day. The only problem I had was a misfeed of the last two rounds from one of my XX mags. The other XX and the XXX fired all rounds, but the bolt did not lock back when empty. I was firing reloads with 230gr FMJ above 5.3gr of Universal. I will try the offending mag with factory rounds the next time I take it to the range. Also, the gun is still new with only a couple hundred rounds through it. I am hoping for it to improve with time. The new springs did make firing the gun more enjoyable since the bolt was much easier to cycle manually. Don,Should I put the 'gorilla springs' back in for a while during break in? ThanksBill Edit: Changed 5.7gr Universal to 5.3gr Edited February 11, 2013 by orrwdd Link to comment Share on other sites More sharing options...
Joe H Posted February 11, 2013 Report Share Posted February 11, 2013 (edited) The other XX and the XXX fired all rounds, but the bolt did not lock back when empty. I was firing reloads with 230gr FMJ above 5.3gr of Universal. I will try the offending mag with factory rounds the next time I take it to the range. Bill, The bolt not holding open can be caused by a number of reasons. If the mag fit is sloppy it can cause the problem. To troubleshoot the problem take off the receiver and using just the trigger frame insert the mag with rounds in it. Start stripping off rounds from the mag by hand and watch the pawl (on right side of slot). With one round in the mag the pawl should be below the surface of the trigger frame. When you strip the last round the pawl should extend above the surface of the trigger frame. The tab on the magazine activates the trip (the lever that extends into the mag slot). It pushes down on the pawl causing the other end of the pawl to extend above the trigger frame base and lock the bolt back in the open position. Kahr uses a very weak spring to activate the pawl so check to be sure there is no binding in the trip or pawl. Try the operation by pushing the mag up and then pulling down so you can tell if it is the location or fit of the mag lock hole that is causing the problem. Another source of the problem, though highly unlikely, is that the slot in the bolt for the pawl is to short. If the reloads are too weak for the bolt to hit the buffer and return then the bolt may not be going back far enough to catch the pawl but just far enough to cycle the gun if that is possible. Maybe be a possibilty, if everything above checks out. FMJ factory loads should sort this out. Good Luck, Joe Edited February 11, 2013 by Joe H Link to comment Share on other sites More sharing options...
Chief762 Posted February 11, 2013 Report Share Posted February 11, 2013 Factory ammo or handload? Bad primer or no powder charge? Stuff happens. Disassemble suspect round and see. Definitely not a good idea to disassemble the round. The primers are less stable. If the primer was obvously struck, as opposed to a very light dent, but the round did not fire then it wasn't the springs, it was the round. On a ftf you should always wait for about a minute to make sure the round is not delayed. Thenremove it.C'mon, anyone that handloads has an 'eraser', I mean an inertia bullet puller. A few taps and the round comes apart. Easy to see what the issue is then. If there is one.Chief Link to comment Share on other sites More sharing options...
T Hound Posted February 11, 2013 Report Share Posted February 11, 2013 (edited) I have one, but I still disagree. That is not safe given the nature of primer explosives. Let meremind you that there are STILL World War 2 bombs going off even to this day. And thereare bomb laden wrecks, like sunken ships, that are left alone due to the bombs. But therisk is yours. With a dented in primer that has not exploded the increased pressure couldbe a hair trigger at that point or it could be that it was a defective primer to begin with meaning itwouldn't explode if you crushed it with a hammer blow. Edited February 11, 2013 by T Hound Link to comment Share on other sites More sharing options...
WeaponsSgt Posted March 8, 2013 Report Share Posted March 8, 2013 i still have the original springs in my M1. i dont plan on changing them. i leave the bolt in the locked position for a month and i do it once a month now for like a week. they do loosen up. Link to comment Share on other sites More sharing options...
Fastarget Posted May 7, 2013 Report Share Posted May 7, 2013 Orwdd,Have you ever chronographed your loads? Link to comment Share on other sites More sharing options...
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