How to Determine Original (Old) vs Revised (New) Main Spring Housing - Page 2 - SIG Talk
SIG Talk Gun Forum

How to Determine Original (Old) vs Revised (New) Main Spring Housing

This is a discussion on How to Determine Original (Old) vs Revised (New) Main Spring Housing within the P238, P938 Pistol forums, part of the SIG Sauer Pistols category; Took delivery of new 938-EQ last month with a build date of 6-28-15. After only ~150 rds of 115gr I became aware of the sear ...


Go Back   SIG Talk > SIG Sauer Forum > SIG Sauer Pistols > P238, P938 Pistol


P238, P938 Pistol All variations P238, P938

Like Tree17Likes
Reply
 
LinkBack Thread Tools Display Modes
Old 11-30-2015, 08:18 AM   #16
Senior Member
 
silverdollaral's Avatar
 
Join Date: Apr 2015
Location: IL
Posts: 191
Took delivery of new 938-EQ last month with a build date of 6-28-15. After only ~150 rds of 115gr I became aware of the sear spring migrating upward and MSH detent post wear (thanks to ThnkFrst). Called Sig CS this AM and explained the situation. Gave rep the serial number, he asked if there were any failures, I said not yet, and without any hesitation he asked for my addresses. He said it would be best to send the pistol in so they can give it a thorough going over, and I'll have it back in less than 2 weeks. I had the shipping label/RMA within 5 minutes.
Bottom line: because of this fine site and helpful members I learned of a potential failure in a new carry gun and am having it repaired before a problem can develop. IMO, these weapons were not designed to be target pistols and failure could have dire consequences. There should be a recall issued since Sig is obviously aware of the problem.
silverdollaral is offline  
Register

Welcome to the SIG Talk Forum dedicated to SIG Sauer Pistols and SIG Sauer Rifles.

We welcome everyone and the community is free to join so register today and become part of the SIG Talk Forum!

Old 11-30-2015, 08:39 AM   #17
Senior Member
 
Join Date: Nov 2015
Location: Pennsylvania
Posts: 118
silverdollaral,
I think it's good that you are sending your pistol in. My P938 has the Gen1 MSH/SS and I can tell you that I have zero wear on my detent post. I MEAN ZERO and I've put 500 rounds through this gun in under a month. I feel that their is definitely more going on than the crappy MSH design (which the Gen1 was a bad design period) or else it would happen in everyone's guns. Not just some here and there. I'd say that it is a culmination of issues that cause that problem. All that being said, I still like to err on the side of caution and go for the new better design. I called Sig, and like you, they were very nice to me. I told them I was having no issues or wear but wanted the new part since it was an improvement and they mailed it out to me. I should have it today when I get home from work. Better safe than sorry. The new design is much more stout and well thought out.
Genin is offline  
Old 11-30-2015, 11:10 AM   #18
Senior Member
 
silverdollaral's Avatar
 
Join Date: Apr 2015
Location: IL
Posts: 191
Quote:
Originally Posted by Genin View Post
silverdollaral,
I think it's good that you are sending your pistol in. My P938 has the Gen1 MSH/SS and I can tell you that I have zero wear on my detent post. I MEAN ZERO and I've put 500 rounds through this gun in under a month. I feel that their is definitely more going on than the crappy MSH design (which the Gen1 was a bad design period) or else it would happen in everyone's guns. Not just some here and there. I'd say that it is a culmination of issues that cause that problem. All that being said, I still like to err on the side of caution and go for the new better design. I called Sig, and like you, they were very nice to me. I told them I was having no issues or wear but wanted the new part since it was an improvement and they mailed it out to me. I should have it today when I get home from work. Better safe than sorry. The new design is much more stout and well thought out.
Zero wear after 500 rounds is a very interesting bit of info Genin. Good to hear they treated you right.
Though I'm not yet entirely familiar with the operation of all parts involved, 45 years as a model maker taught me that the proper material, and heat treating when called for, makes a huge difference in part life from one batch to another. In today's climate of hurry up and cut cost, the inspection and testing process is key. Especially in products that could be called on to save lives.
Genin likes this.
silverdollaral is offline  
 
Old 11-30-2015, 12:57 PM   #19
Senior Member
 
Busykngt's Avatar
 
Join Date: Aug 2014
Location: Big D
Posts: 100
How to Determine Original (Old) vs Revised (New) Main Spring Housing

So far, that's been my experience too (on my P238). I've shot just over 500 rounds through it and visually inspected the wear; I see no indications of wear on the hole or the post. I noted the post tends to reside just slightly towards the bottom side of the hole (but nothing excessive or what would appear out of the ordinary). However I will probably still make the call in order to have the latest design.

Last edited by Busykngt; 11-30-2015 at 01:39 PM.
Busykngt is online now  
Old 12-02-2015, 12:07 PM   #20
Junior Member
 
Join Date: Feb 2014
Location: Mass.
Posts: 6
Question. My P938 has been back to Sig already for service due to FTE issues. They did some ramp polishing and replaced the guide rod as the old one would loosen up. I haven't had any issues after this fix. Recently, I noticed that the trigger pull seems excessive, perhaps more than the 8.5lb spec. Is there any relationship to the MSH housing/sear spring issue to the trigger pull? Yes, I did inspect per the pictures and I clearly see the burr/gap forming. Since this is my EDC gun, I'm getting concerned with it's reliability.
subvet is offline  
Old 12-02-2015, 12:24 PM   #21
Senior Member
 
ThnkFrst's Avatar
 
Join Date: Mar 2012
Location: SEMI
Posts: 7,757
If the sear spring gets high enough in the assembly, the back of the ejector can start to catch under the spring and this can cause a gritty feel in the trigger and increase the pull IMO. Here's a pic to describe what I'm talking about:
P938SearSpringWear.001.jpg

It's time to call SIG and have your unit sent in for the MSH/sear spring upgrade.
ThnkFrst is online now  
Old 12-19-2015, 01:24 PM   #22
Member
 
Join Date: Dec 2015
Location: New Mexico
Posts: 60
Mine is dated August 29,2015 and has the new MSH.

At about 200 rounds the only problem I have had is with my reloads. All the factory rounds function great. I'm new to reloading 9MM and wanted to see if a few bullets that did not gauge would work in the gun. They did not.

Had a weird fail to fire. I had forgotten that I put a few out of spec rounds in my first mag. It seemed to go into battery and then when I pulled the trigger, no boom. I found it odd that it might not have been fully in battery and still the hammer dropped.

I dropped the mag and attempted to rack the slide, but it would not budge.........I thought I broke something. Finally after jiggling it a bit more, I pulled the hammer back, and pulled the trigger, it fired. This happened twice.........both times reloads.
PGP938 is offline  
Old 12-20-2015, 05:29 AM   #23
Senior Member
 
Busykngt's Avatar
 
Join Date: Aug 2014
Location: Big D
Posts: 100
How to Determine Original (Old) vs Revised (New) Main Spring Housing

Quote:
Originally Posted by PGP938 View Post
It seemed to go into battery and then when I pulled the trigger, no boom. I found it odd that it might not have been fully in battery and still the hammer dropped.

I dropped the mag and attempted to rack the slide, but it would not budge.........I thought I broke something. Finally after jiggling it a bit more, I pulled the hammer back, and pulled the trigger, it fired. This happened twice.........both times reloads.

I've had the exact same experience, also twice within the first 500 rounds I've fired in my P238 (380 ACP) however this was with factory new Blazer ammo. Not exactly a confidence building experience with an EDC weapon! Same exact experience: slide wouldn't budge; messed around with it a bit (magazine had been dropped, but live round chambered) manually pulled the hammer back and got it to fire after a couple of attempts. No way to intentionally try and duplicate the condition. I had wondered if maybe it was a weak recoil spring (?) but my gun had been bought new, so that doesn't seem likely. Haven't experienced the problem in about 200 rounds now.
PGP938 likes this.

Last edited by Busykngt; 12-20-2015 at 05:35 AM.
Busykngt is online now  
Old 12-22-2015, 06:43 AM   #24
Senior Member
 
trafficlawyer's Avatar
 
Join Date: Oct 2013
Location: Marietta, Georgia
Posts: 288
Quote:
Originally Posted by ThnkFrst View Post
I do not believe that SIG intends to issue a recall. I was told that the new hardware would be fielded as a warranty claim. My advice is to make a call and ask for a replacement.
Just talked to a Sig rep and he had no ******* clue what I was talking about??
trafficlawyer is offline  
Old 12-22-2015, 07:05 AM   #25
Senior Member
 
Busykngt's Avatar
 
Join Date: Aug 2014
Location: Big D
Posts: 100
Somehow that doesn't surprise me. Once a gun manufacturer issues an official "recall notice" I suspect that opens an entirely different set of "liability" doors than does a much more simple "warranty repair." (Not to mention keeping the change on the QT).
Busykngt is online now  
Old 12-22-2015, 10:31 AM   #26
T2C
Member
 
T2C's Avatar
 
Join Date: Dec 2015
Location: Illinois
Posts: 66
I am picking up a new P938 SAS tomorrow and I am glad I stumbled across this thread. I'll check the born on date and MSH to see if it has the new or old part.

I shoot quite a bit more than most people and have fired over 2,000 rounds through my Glock 43 since I picked it up at the end of July. I intend to treat the P938 the same way, weather permitting.

I have read reports of people shooting a lot of trouble free rounds through their P938 and others who say they have had a lot of problems. I have my fingers crossed and hope I made the right choice for a concealed carry firearm.

Update: I picked up the P938 and it has a born on date of 19-Oct-2015. Naturally, the mainspring housing and sear spring are the newer versions. The first 100 rounds fired were trouble free.

Last edited by T2C; 12-23-2015 at 03:04 PM. Reason: Update
T2C is offline  
Old 01-30-2016, 10:10 AM   #27
Junior Member
 
Join Date: Jan 2016
Location: Tennessee
Posts: 26
Quote:
Originally Posted by T2C View Post
I am picking up a new P938 SAS tomorrow and I am glad I stumbled across this thread. I'll check the born on date and MSH to see if it has the new or old part.

Update: I picked up the P938 and it has a born on date of 19-Oct-2015. Naturally, the mainspring housing and sear spring are the newer versions. The first 100 rounds fired were trouble free.
Seems the P938 had a few issues that are mostly (if not all) resolved on newer ones. I'll be purchasing a 938 Equinox soon and I've been looking for what the "fixed date" is.

So what before date do I need to avoid??
wskinner66 is offline  
Old 01-30-2016, 11:40 AM   #28
Senior Member
 
ThnkFrst's Avatar
 
Join Date: Mar 2012
Location: SEMI
Posts: 7,757
My best guess would be Aug 2015 or later. That should at least get you the new MSH/sear spring design.
wskinner66 likes this.
ThnkFrst is online now  
Old 02-07-2016, 09:11 AM   #29
Junior Member
 
Join Date: Feb 2016
Location: Romeo, Michigan
Posts: 18
My P238, S/N 27B166186, is dated June 15, 2015, and has the old MSH and spring; I've only put about 200 rounds through it, and it shows no wear. I'll keep an eye on it and send it in if I see any sign of wear.
JohnZ is offline  
Old 02-07-2016, 10:37 AM   #30
Senior Member
 
Join Date: Mar 2015
Location: Charlotte
Posts: 107
Quote:
Originally Posted by JohnZ View Post
My P238, S/N 27B166186, is dated June 15, 2015, and has the old MSH and spring; I've only put about 200 rounds through it, and it shows no wear. I'll keep an eye on it and send it in if I see any sign of wear.
ThnkFrst can correct me, but I'm not aware of MSH issues with the 238. Just out of curiosity, are they changing those too? With all the time I spend reading this forum I should know
Topgun1953 is offline  
Reply

  SIG Talk > SIG Sauer Forum > SIG Sauer Pistols > P238, P938 Pistol


Search tags for this page
changing grips on p238
,
how to tell which p938 you have
,
old and new sig p238
,
p238 upgraded mainspring housing
,

p938 new release versus old

,
sig p938 mainspring
,
sig p938 new style main spring housing
,
sig p938 revised mainspring housing
Click on a term to search for related topics.

Thread Tools
Display Modes


Similar SIG Talk Discussions
Thread Thread Starter Forum Replies Last Post
Main Spring Housing (MSH) Replacement Videos Malicious Compliance P238, P938 Pistol 13 05-17-2016 12:09 PM
P938 Main Spring Housing failure. Another posibility. Rob Hawkins P238, P938 Pistol 14 04-07-2015 03:31 AM
Sig 1911-22 main spring housing bgdv1 SIG Sauer Gunsmithing 2 03-08-2015 04:14 PM
just installed ed brown main spring housing wilson grips fuelman426 SIG Sauer Pistols 6 02-04-2015 06:06 PM
Wolff P226 main spring too long? crosseyedshooter SIG Sauer Pistols 8 09-18-2014 07:07 PM


Top Gun Sites Top Sites List

Powered by vBulletin 3.8.7
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.1
Copyright © 2010 - 2017 SIG Talk. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.SIG Talk is a SIG Sauer Firearms enthusiast's forum, but it is in no way affiliated with, nor does it represent SIG Sauer, Inc. of Exeter, NH.