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The p290 "Problem"

This is a discussion on The p290 "Problem" within the SIG Sauer Pistols forums, part of the SIG Sauer Forum category; Since I had this problem, as well as several others that I read of on the Internet, I was extremely curious as to the cause. ...

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Old 05-14-2011, 09:03 AM   #1
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Since I had this problem, as well as several others that I read of on the Internet, I was extremely curious as to the cause. SIG will not say what the problem is and are merely saying "trigger adjusted" on the repair sheets. Well, how can you "adjust" a non-adjustable trigger? I had the dreaded "dead" hammer falls that so many others are having. The difference is that I had cleaned the FP channel on mine looking for a solution before notifying SIG. It was only after my repaired p290 was returned that I noticed what SIG had "repaired." and it was not the trigger IMO. They have changed the FP safety plunger spring style!!

The p290 uses (used?) the same style FP safety plunger spring as does a Glock. What was causing the hammer to not fall half (or more) the time was that the FP safety was "clocking" in its hole thereby preventing the hammer from falling and the weapon from firing. When my p290 was returned from SIG & "repaired" I was curious as to what they had done as I was sure it was not the trigger. I had it narrowed down to the disconnector or the FP safety. I disassembled the slide as to remove the FP. It was then that I noticed that the FP safety spring underneath refused to fall out and even stranger I could see that it was centered in the hole with lots of space around it. I thought "what the hell..." I then took it out with tweezers & lo & behold I now see the infamous SIG "trigger adjustment."

Here are some photos I shot of the new FP safety spring. It has a "blunderbuss" bottom now to prevent it from "swimming" in the hole. They cannot use a spring larger in circumference the entire length as the spring would not fit into the recessed hole on the underneath of the FP safety plunger. The misfires were caused by an ill fitting FP safety spring that prevented the hammer from falling completely. The original FP safety spring was shaped normal like that found in a Glock. This new spring centers it and prevents "clocking."

It's really a slick little adaptation that negates the need for newly designed FP safety plungers or a smaller hole in the frame. A 5 cent solution to a million dollar problem.

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Old 05-14-2011, 11:12 AM   #2
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Very interesting. Thanks for sharing this information.
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Old 08-03-2011, 06:27 PM   #3
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I purchased a Sig P290 about a month ago, it came with an eight round mag by the way. I took it to the range and it took about hour to shoot 50 rounds.

I had numerous light strikes and many times the hammer never made contact with the firing pin. The good news is no mag problems and when it did fire.... very nice,

but what good is a great shooting gun that only fires three times out of a dozen trigger pulls. I sent it back to Sig the next day and two weeks later I was notified

that they are sending me a new gun, awesome, but they have yet to tell me what was wrong with the first one. When I first contacted Sig they blamed my grip and said they were not

aware of any problems with the p290. Today, I called and asked when I could expect the new gun, they said 90 days. I was told production is down right now because they have redesigned the

trigger and hammer for the next production run, to begin in the next two weeks.
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Old 04-30-2012, 03:52 PM   #4
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I have already posted a reply but it was under the customer service info. I am curious why Sig sent my gun back and tod me that it was either the ammo or me. Seems to be the party line at Sig. I have not had as bad an experience as the it's before this but in my opinion when yo spend over $700 for a gun it should not have any "No hits" or as I have seen FTF'S. The they blamed my grip and/or my cheap ammo. I have been using Winchester and Remington target ammo at $23 per hundred for wallymart. Since I had not been trained on a semi auto I was believing that it was ME. When I gt the gun back from Sig with the note about my ability I sort of believed them. By the way the gun seemed to have gotten worse. Now it failed to eject and had a round jam. I have a 229 for overr ten years and have put thousands of rds thru it and not ONE not ONE FTF or FTE????
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Old 04-30-2012, 04:53 PM   #5
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Sig CS is put in an impossible position, trying to cover for a production group who is in an impossible position, being told by management that they need to develop a small, polymer gun to compete in the hottest market in decades. The problem.....Sig's Classic line just does not lend itself to being made smaller and the developers at Sig haven't a clue how to do anything else. It's literally trial and error. Sadly, the P224 will be another disaster, as the design just doesn't allow for such abuse from a shortened slide. Long-term, it won't work.

Sig has a real problem moving forward, as the market is only interested in smaller, lighter guns. Something radically different needs to happen at Sig if they want to truly compete in this market.
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Old 05-01-2012, 04:00 PM   #6
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I think replacing the safety plunger certainly fixed the falling to half cock position which is what I had but also upon receiving my P290 back from Sig the trigger was completely different and so much smoother, so there doing alittle more the the safety plunger, at least on my gun. BtW my return paper work said replace the trigger group.
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Old 05-01-2012, 09:16 PM   #7
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In these days of instant global widely dispersed communications, gun manufacturers have to be careful of what they say. In the olden days a CS rep may have been more forthcoming than they are allowed to be today. Admitting a defect, of any nature, in their guns opens them up to all sorts of ridiculous liability. Especially when those design defects are posted in places like this. There are organizations out there waiting to pounce on gun manufacturers for any manner of fault.

Besides that, current business thinking doesn't allow much in the way of admitting fault. Even within their own corporations. The auto industry is very much like that. Even today with all the issues that Toyota had with their sudden acceleration and dimished braking, Toyota won't publicly say there was a problem. They are complying with all the government recalls and quietly repairing any other acceleration issues. It got out of hand with Toyota and lasted far longer than it should have because upper management wouldn't believe the problem was as widespread as it was and apparently there was nobody with the facts that had cajones enough to tell 'em. The messengers don't want to be sacrificed.
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Old 05-26-2012, 08:16 AM   #8
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P290 problem

I had the same 'light hits' problem on my P290. The manufacture date was Sept 2011. I sent it back to SIG and they returned it within a week. The Gunsmith comments were: Inspected the pistol. Installed the safety plunger spring, it was missing. Converted the pistol to re-strike as a courtesy. ( They asked me first if it was okay to do) Test fired 50 rounds with no malfunctions.
I'm going to the range next week to put a 100 rounds through it to see how it works. I can't see how the spring was missing and it fired before.
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Old 05-28-2012, 05:01 AM   #9
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I took my "returned 3 times and Replaced with a new 2/12" gun shooting Sat. It now has 400 rounds and I have now had a total of 7 light strikes, 4 of them in the last 40 rounds, so this one looks like it is going back too. I like the little gun but Sig has lost all of my future purchases. I wish the Shield was smaller.

I want to test the 290 with some different ammo, which brands are known to have the hardest primers? My initial guesses would be Tula, Privy Partizan, or NATO surplus but I really don't know.... do any of you?
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Old 05-28-2012, 12:20 PM   #10
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I have had light primer strikes on my Kahr PM9 which has been returned for repair. By far the worst problems were with Remington ammo including Golden Saber.
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Old 05-29-2012, 04:08 PM   #11
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I'm using my department issued Winchester Ranger 9mm 147 gr T-series.
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Old 05-29-2012, 06:20 PM   #12
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All I could find at 3 LGS is a box of S&B and Fiocchi, They should have sufficiently hard primers to test the 290. If it fail with these its going back again, if not then I'll continue to wait and see since I've used up all the "bad" ammo.
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Old 06-19-2012, 09:01 PM   #13
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So which end goes in first? Does the larger coil sit in against the slide under the firing pin, with the small end pointing out toward the bottom of the slide and fitting into the small recess in the safety stop? ... or is it the other way around?
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