My Strange Sig: Hammer Dropping Itself?

[TunnelRat]

Hi all,
Today I bought a used Sig P2022 that appeared to be in excellent shape and was manufactured in 2008. It came with a 357 sig barrel and a 40 s&w barrel. After about 50 rounds of 40 that went very well I started shooting the 357. Towards the end of the box I noticed that when hitting the slide release to chamber a round after inserting a mag that the hammer was automatically dropping. I made sure I wasn't hitting the decocker but it kept happening. It would also drop the hammer now when chambering rounds in the middle of a magazine sporadically. It was basically putting itself in double action. Then sometimes the next round would be SA, sometimes DA. I put the 40 barrel back in and it still continued. I even had the range owner try it as he is a Sig retailer and he had the same issue. The gun still fired but I am obviously concerned. I was shooting Federal Champion 40 and Winchester White Box 357

Obviously I need someone to look at it, but any ideas on what it might be?
Thanks,
TR

 

[DPris]

Yes, a problem you can't fix.
Time for a gunsmith.
Denis

 

[FrankenMauser]

It's worn out or incredibly dirty, and the hammer is following the slide.

Give it the most ridiculous deep cleaning you have ever given a firearm.

If that doesn't fix it...
Gunsmith time.

 

[Will Beararms]

Send it back to Sig. Some of the SP2022's are guilty of this. I believe it only happened with the .40's and .357's. They are fully aware of this issue or you can take your chances with a gunsmith on the street. I would send it to Gray Guns if I did not send it to Sig.

 

[WVsig]

Send it to Sig. It is a problem with the sear and hammer engagement IIRC. They will replace the parts under warranty. Make them issue a call tag do not pay shipping to them. They should cover it both ways.

 

[TunnelRat]

I did clean it pretty thoroughly when I got back. It actually wasn't that dirty but the prev owner had used a lot of grease which I cleaned off. Still having the same issue.

It is a shame cause I really like it so far. I normally don't like 40 but it shoots just like a 9 in this frame.

The store I bought it from does a 30 day warranty on all used guns and they have their own Smith that I have used in the past and he is really good. However I am debating just sending it to sig since it is a 10 min drive from my house .

 

[WVsig]

Take it to Sig and with Sigs grease is the way to go even with their polymers.

 

[NJgunowner]

Sigs like grease on the slides.

Sig will take care of you, give them a jingle.

 

[TunnelRat]

Thanks guys! I didn't have a problem with grease but he had an excessive amount and the grease was filthy.

Can someone recommend a good grease?

 

[WVsig]

Can someone recommend a good grease?

Shooters choice in syringes is good stuff.
Wilson Grease
Tetra Grease
Slide Glide

Some people even use white lithium grease.

I like use Slide Glide with a brush or stuff in syringes like Shooters. It makes application easier.

Here is a link to a good article on Sigs and grease.

http://www.apextactical.com/blog/index.php/random-apex/lubrication-of-sig-sauer-pistol-rails/

 

[Will Beararms]

Sig uses TW25B Grease. They had a tube in Sig Pro .40 box.

http://www.mil-comm.com/index.php?option=com_content&task=view&id=51&Itemid=72

 

[TunnelRat]

So Sig wants to charge me $80 for a service and the shipping one way.

Is this normal? Have I been spoiled by S&W?

 

[WVsig]

So Sig wants to charge me $80 for a service and the shipping one way.

Is this normal? Have I been spoiled by S&W?

Did you tell them you bought it second hand?

 

[TunnelRat]

I think I did, did honesty just screw me over?

 

[WVsig]

I think I did, did honesty just screw me over?

Maybe... Sig is not like S&W, Ruger or SA who cover the gun forever no matter who owns it.