SIG P239 40 Sticking trigger


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ka8yoh
December 29, 2010, 01:05 PM
Sticking SIG P239 trigger


Hi, I'm a newbie to this site. I live in Wisconsin and (due to the november vote), went shopping for a good hard hitting carry pistol. I have smaller- warm weather compacts in 380, 38 and 22MAG...besides, I needed to buy me a Christmass present:)


I know this is a little late (as far as some of the post dates on this matter are concerned), but have some useful information. I just bought a new SIG P239 40, after getting if home I noticed it took 3 men and a boy to release the slide stop with the thumb. The gun-shop said this will loosen up once I shot it a while.

After getting it to the range, I was very happy with the groupings...I started at around 20 yards. When I bought it I was told you almost cant beat a SIG "out of the box" at the range...for the price range...he was right! The closest I had was a Colt XSE Government...and THAT is a good shooter. but my new SIG put it to shame...well...not shame but it shot it where you pointed it better!

The recoil spring started to loosen enough that the slide release was greatly easier to use my thumb to drop the slide and strip a fresh round. But after the first 100 rounds the trigger started wanting to stay pulled back and took pushing it forward to pop off a round...a few rounds later the trigger did nothing but dangle uselessly. I was visiting my dad in Michigan and was at a range there. I asked one of the guys at the gun counter if he knew anything about this problem. He just said "we don't sell SIGs here" so he couldn't give me any advice. A nearby customer just blurted out " You'd never see a Glock do that!"...boy...I felt kind of bad.

When I got back home, I took a look under the right grip and found the trigger return spring disconnected flopping loose at the transfer bar end...still hooked into the frame end. I reset the spring and it all seemed to work fine...but I took it back to the shop where I got it from. One younger guy said "it was probably one of those weird glitches that can happen"! I said "no...you can't have a personal protection or backup gun just occasionally glitching". The gunsmith was called in and he noticed that the downward pointing end just after the hook was short looking. He pulled out another P239 (used) and compared the two...sure enough, the end was noticeably longer! the spring was manufactured wrong. We called SIG and they apologized up and down. Sending out a new replacement spring with a pistol order that was just about to be shipped.

So, if anyone is having this problem with their P239s (maybe other single stack frames)and are just dealing with it, just take a look at and change the spring. SIG will probably just give you a new one, if not they are like 50 cents. The spring didn't break!!!, it was just cut off during the bending process too short...a tiny bit longer and it might just bind for a few rounds and jump back into position, a correct spring should work for the life of what you'd expect from a spring doing this job.

I hope this helps someone in this position.

YOH

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1SOW
December 29, 2010, 09:57 PM
KA8YOH: Thanks for the tip and "Welcome to the forum."

I've had a trigger spring break (but not on my Sig) and it behaved the same but couldn't be reconnected. I know the Sig is test fired before shipment but only a few rds.

Mine has quite a few rds through it (thousands), and it has never had any type of failure.

It's a good gun.

1858
December 29, 2010, 10:08 PM
Excellent post there ka8yoh and welcome! I have a P239 SAS Gen 2 in 9mm but didn't look at the trigger return spring when I took the grips off. I'll check mine, but like 1SOW I've had no issues at all from day one and have 250 rounds through it (not many I know). The only thing I've done to my P239 is swap out the plastic spring guide rod for a steel one. They're GREAT pistols, and as you discovered, they're plenty accurate. By the way, do you have the short reset trigger (SRT)?

RedAlert
December 30, 2010, 05:00 PM
I think it pretty safe to say that any firearm, especially one in mass production can suffer from some form of manufacturing "glitch." Even the Glock. It just happens that mass production introduces tolerances to manufacturing and it is bound to result in one rotten egg in the line. Quality Control does its best to weed out those "glitches", and most often succeeds. Still, if humans are involved, occasionally a "glitch" escapes into the world.
Top Manufacturers try very hard to eliminate errors, but as I said if humans are involved, one will escape time to time.
Sig seems to have missed this one and it sounds like they are treating you okay on fixing the problem. Good for them.
Moral of my comments, Glitches happen, so be prepared to deal with them with practice and training, even if you own a Glock.

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