Sig P239 .357 SIG problem

Sig P239 .357 SIG problem

This is a discussion on Sig P239 .357 SIG problem within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; First off, I just registered after finding a thread through a Google search where someone had a mag issue with a P239 and everyone here ...

Results 1 to 14 of 14
Like Tree3Likes
  • 1 Post By C9H13NO3
  • 1 Post By dr_cmg
  • 1 Post By greyeyezz

Thread: Sig P239 .357 SIG problem

  1. #1
    New Member Array volman's Avatar
    Join Date
    Jan 2009
    Location
    Georgia
    Posts
    3

    Sig P239 .357 SIG problem

    First off, I just registered after finding a thread through a Google search where someone had a mag issue with a P239 and everyone here was very helpful. I haven't received much help from the Sig Forum on this issue, so I thought I'd join up here and see what you guys think...and obviously hang around since there is so much good info here.

    Ok, about the problem. I recently picked up the nicest Sig P239 CPO I've ever seen. It is in .357 SIG, which in my experience is a fun round to shoot and is VERY reliable as far as feeding. Unfortunately, both mags that have come with my 239 are failing to feed the first two rounds when at full capacity (7 rounds). If I only put in 4 or 5 rounds, it feeds fine. I've broken down the mags and checked to make sure they were assembled correctly. I can't figure out what exactly is causing it, but for some reason the top two rounds are not coming out of the mag at an upward angle...they are actually coming out at a slightly downward angle and then jamming on the feed ramp.

    I'll try to explain it the best I can. With 7 rounds in the mag, the 7th round sits at the appropriate upward angle, but the round immediately below it (round #6) is actually sitting pretty level. The 7th round is in there tight enough that when it is pushed foward by the slide, it nose dives due to the available space below the bullet from round #6 sitting level. If I have 6 rounds in there, the same thing happens between round #6 and round #5. 5 rounds or less and I have no problems, they all feed reliably. This is with both HP and FMJ.

    Any idea why it would be doing this? I'm stumped. I plan on calling Sig on Monday to inform them of this problem and request new mags.

    Thanks for any help.


  2. #2
    Distinguished Member Array C9H13NO3's Avatar
    Join Date
    Nov 2007
    Location
    Texas
    Posts
    1,513
    Sounds like you may have gotten a bad lot of mags. It's odd for 2 brand new mags to have the exact same problem. Normally I'd say your spring is too stiff. If Sig doesn't want the old mags back to replace the new ones, there's a few things you can try. Keeping mags loaded won't reduce the stiffness, but going through cycles will. You could use a cleaning rod or something similar as a plunger and cycle each magazine spring a bunch until they wear in. You could also remove the spring and compress it over and over by hand. You could even try cutting the spring down a tiny bit.

    Either way, I'd mark these mags and keep them as range only, and not for carry.
    pat701 likes this.
    -Ryan

    All that is necessary for the triumph of evil is that good men do nothing.

  3. #3
    VIP Member
    Array dr_cmg's Avatar
    Join Date
    Feb 2006
    Location
    Alabama
    Posts
    10,808
    I have not had this happen with SIG mags, but I have seen some where the feed lips get bent or a dent in them and it throws the feed off. When the mag is full there is not a lot of room for error and a minor deflection on the lips can cause problems. If you find that this is the problem the next question is what is causing the problem on your mags.
    hdhnict likes this.
    George

    Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. Albert Einstein

  4. #4
    VIP Member Array mcp1810's Avatar
    Join Date
    Jan 2007
    Location
    Texas
    Posts
    5,103
    Fortunately the CPO program gives you a one year warranty, so if it isn't right they will make it right. Off the top of my head I am thinking that if both magazines are doing the exact same thing that the problem is not with the magazines, but with the pistol itself. My first guess would be that when it was being serviced they put a 9mm recoil spring in instead of the .357/40 spring.

    If I were you I would go ahead and swap out the recoil spring and give it a try. If that doesn't solve the problem go ahead and put the original back in it and send it back to Sig. You will have to replace that spring sooner or later so it is not really costing you anything to buy it now and try it.
    Infowars- Proving David Hannum right on a daily basis

  5. #5
    Senior Moderator
    Array HotGuns's Avatar
    Join Date
    Dec 2004
    Location
    Arkansas
    Posts
    15,126
    The magazines may have the spring inserted into them the wrong way. Take the mags apart.

    The spring should be facing foward. By that, I mean that the angled part of the spring should be facing towards the gun. This places the plastic or metal shelf at an upward angle for proper feeding. If the spring is in backwards, it will allow the bullet shelf to point down, rather than up.

    Got it?

    I once corrected a mag this way at the range that had the same problem. If it is ever taken apart it is easy to turn the spring the wrong way. Its a simple fix, if that is the problem.
    I would rather stand against the cannons of the wicked than against the prayers of the righteous.


    AR. CHL Instr. 07/02 FFL
    Like custom guns and stuff? Check this out...
    http://bobbailey1959.wordpress.com/

  6. #6
    New Member Array volman's Avatar
    Join Date
    Jan 2009
    Location
    Georgia
    Posts
    3
    My first thought was that the mag spring was in backwards also, but after breaking both mags down, that isn't the case. The reason I think it is the mags and not the gun is because they feed fine with only 4 - 5 rounds in the mag.

    For those not familiar with the CPO (Certified Pre-Owned) guns from Sig, they are factory re-conditioned guns that are usually turned in from law enforcement agencies when they are getting new guns from Sig. The P239s are usually issued as backup guns, so they don't tend to see much use...mine looks great to the point that there are barely any barrel smilies. All that said, the mags ARE used, so they could be out of spec somehow...I'm just not familiar enough with them to know how they could be out of spec that would cause my problem.

  7. #7
    New Member Array eagleonefly's Avatar
    Join Date
    Jul 2012
    Location
    Houston
    Posts
    1

    P239 Sig .357 JAMMING DUE TO MAGAZINE

    I have the same problem. If I put 7 rounds in my P239 SIG .357 the 6th and 5th round nose drops. I have to put only 5 +1. If I put 7 it jams most of the time. The spring is installed correctly, but I noticed the force of the spring is very strong. I have three Italian made OEM Sig Sauer magazines and they are all big time DEFECTIVE misaligning the rounds. Have you solved the problem?


    Quote Originally Posted by volman View Post
    First off, I just registered after finding a thread through a Google search where someone had a mag issue with a P239 and everyone here was very helpful. I haven't received much help from the Sig Forum on this issue, so I thought I'd join up here and see what you guys think...and obviously hang around since there is so much good info here.

    Ok, about the problem. I recently picked up the nicest Sig P239 CPO I've ever seen. It is in .357 SIG, which in my experience is a fun round to shoot and is VERY reliable as far as feeding. Unfortunately, both mags that have come with my 239 are failing to feed the first two rounds when at full capacity (7 rounds). If I only put in 4 or 5 rounds, it feeds fine. I've broken down the mags and checked to make sure they were assembled correctly. I can't figure out what exactly is causing it, but for some reason the top two rounds are not coming out of the mag at an upward angle...they are actually coming out at a slightly downward angle and then jamming on the feed ramp.

    I'll try to explain it the best I can. With 7 rounds in the mag, the 7th round sits at the appropriate upward angle, but the round immediately below it (round #6) is actually sitting pretty level. The 7th round is in there tight enough that when it is pushed foward by the slide, it nose dives due to the available space below the bullet from round #6 sitting level. If I have 6 rounds in there, the same thing happens between round #6 and round #5. 5 rounds or less and I have no problems, they all feed reliably. This is with both HP and FMJ.

    Any idea why it would be doing this? I'm stumped. I plan on calling Sig on Monday to inform them of this problem and request new mags.

    Thanks for any help.

  8. #8
    Member Array greyeyezz's Avatar
    Join Date
    Apr 2010
    Location
    Cleveland OH
    Posts
    101
    Do the mags say 357?
    Pick up an 8 rd mag from Top Gun Supply and see what happens. If it jams its the gun. Or send the mags to Sig for replacement springs.
    You can try polishing the feed ramp but thats hit or miss. My 239/357 eats everything like candy.
    CLASS3NH likes this.

  9. #9
    New Member Array rmaffie's Avatar
    Join Date
    Sep 2009
    Location
    Louisville. ky
    Posts
    1

    magazine issues

    I read that the magazine springs in the Italian mags ate different than the springs in the germany mags. Just saying

  10. #10
    New Member Array specialkayme's Avatar
    Join Date
    Oct 2014
    Location
    Greensboro, NC
    Posts
    9
    I know this is an old thread, but I just bought a new p239 in .40 S&W and I'm having the same problem.

    I put ~175 rounds through it last weekend, and I had 7 failure to feeds. I didn't notice it before, but I think it was always the 1st, 2nd or 3rd round in the mag. Both mags that came with the gun are having this problem.

    I asked the range owner if he knew what the problem was, he said lack of lube. We lubed it up, I put 14 more rounds through it, and had 2 ftf's. Range owner shrugged his shoulders and told me to put more rounds through it, it'll be fine.

    I called sig customer service, and they got defensive. They said I had to "break it in." He told me 9 failure to feeds in ~190 rounds was normal. If it was 20-30% rate, then there would be a problem. That low amount was common. I was shocked at his comment. He said I could send the gun in if I wanted, but they would only put 50 rounds through it, and odds are they couldn't get it to replicate the problem, so they would just end up sending it back to me. But I could try if I wanted to.

    He said it should clear up after I put about 100-150 rounds through the gun. I said I put 190 through it and it hasn't gone away. He told me to just keep shooting it.

    I'm really disappointed in the gun and the poor customer service of sig. I thought both would be much better.

    Would replacing the mag springs help? Like I said, both appear to have problems.

    Any help appreciated. Thanks.

  11. #11
    VIP Member Array matthew03's Avatar
    Join Date
    May 2011
    Location
    S.W. VA
    Posts
    2,055
    Specialkayme, You may want to start a new thread. You may get a better response as the date of 2009 shows for the OP.

    That is a crappy response from Sig, I would call and speak to another rep. I would also pass on to the next rep. what was said on the original call; in my opinion that is no way for CS to treat a customer.

    On to your issues: What kind of failure are you getting? Is the round nosediving into the feed ramp, failure to go fully into battery, or being skipped over?

    Is the failure possibly ammo related? What brand and type are you shooting? Has it happened with anything else?

    How did you lube the gun? You did not lube the mags did you?

    What brand of mag came with your gun? Sig used to use MecGar exclusively, I think they are shipping with Pro Mags now. I prefer MecGar mags by far, and those are what I have for my Sig.
    _____________________________
    www.AppalachianConcealment.com

  12. #12
    Member Array tcfiero's Avatar
    Join Date
    Jun 2012
    Location
    Jacksonville, FL
    Posts
    69
    Someone else asked if the mags had .357 on the mag. I just ordered some for when I get my barrel. I know my 40 mags have 40 on them. It might be that you were sent 40 or 9 mm mags and not 357. Make sure there are no burrs on the follower and make sure the inside of the mags are good and clean.

  13. #13
    Member Array pat701's Avatar
    Join Date
    Feb 2012
    Location
    Beyond OZ
    Posts
    197
    Quote Originally Posted by C9H13NO3 View Post
    Sounds like you may have gotten a bad lot of mags. It's odd for 2 brand new mags to have the exact same problem. Normally I'd say your spring is too stiff. If Sig doesn't want the old mags back to replace the new ones, there's a few things you can try. Keeping mags loaded won't reduce the stiffness, but going through cycles will. You could use a cleaning rod or something similar as a plunger and cycle each magazine spring a bunch until they wear in. You could also remove the spring and compress it over and over by hand. You could even try cutting the spring down a tiny bit.

    Either way, I'd mark these mags and keep them as range only, and not for carry.
    Agree 100%^^^^^

  14. #14
    New Member Array specialkayme's Avatar
    Join Date
    Oct 2014
    Location
    Greensboro, NC
    Posts
    9
    Quote Originally Posted by matthew03 View Post
    Specialkayme, You may want to start a new thread. You may get a better response as the date of 2009 shows for the OP.
    Thanks, I'll start a new thread in a sec. I'll try to post answers to your questions there.

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. New for me, SIG P239
    By itschuck in forum Defensive Carry Guns
    Replies: 39
    Last Post: July 17th, 2013, 10:31 PM
  2. Sig P239 .40 vs 9
    By nasm in forum Defensive Carry Guns
    Replies: 16
    Last Post: October 31st, 2009, 04:10 PM
  3. SIG P239: DAK or DA/SA?
    By batpot in forum Defensive Carry Guns
    Replies: 31
    Last Post: January 16th, 2009, 11:40 AM
  4. Equipment Problem or Training Problem -- Boston PD Melts Down Pepper-pellet Guns
    By SIGguy229 in forum Law Enforcement, Military & Homeland Security Discussion
    Replies: 11
    Last Post: February 25th, 2007, 03:59 PM
  5. My Sig P239
    By dr_cmg in forum Defensive Carry Guns
    Replies: 20
    Last Post: May 13th, 2006, 02:08 PM

Search tags for this page

p239 357 sig
,
p239 357 sig review
,
p239 jamming
,
p239 problems
,
sig 239 problems
,
sig p239 .357 sig
,

sig p239 357

,
sig p239 357 review
,

sig p239 357 sig

,

sig p239 357 sig review

,
sig p239 cpo
,

sig p239 problems

Click on a term to search for related topics.