what part is this?

[f2]

I think it's from one of my J-frames:

 

[robertrwalsh]

Appears to me to be a main spring and strut to power the hammer. But then again I am not much of a J-frame person.

 

[VictorLouis]

It's definitley a mainspring w/strut, but sure doesn't look J-frame. Unless, perhaps, a really old, early model.

 

[Green Frog]

Do you have any semi-auto parts that could be mixed in? That strut looks like it belongs to a semi-auto, but not to a S&W J frame.

Froggie

 

[Bastogne71]

It's not for a J frame. Here's the parts list for a model 63. As you can see the mainspring stirrup (part #7083) looks nothing like yours in the picture. Also the mainspring on the J frame is not captive on the stirrup like yours.

I haven't any idea what this is from but, hopefully, someone will ID it for you.

 

[gwpercle]

When you get older you will find labeling parts almost becomes mandatory.
I can't even put a part in a baggie and label the baggie anymore ... I take the part out and then loose the baggie and left with a unknown .
I have to attach a label to the part and hope I don't loose the part ...
Getting old has some serious side effects !!!
If you are not yet 40 .... watch out for them side effects ...they sneak up on you .
Gary

 

[jdlii]

Its the one that goes "boing" and flies across the room only to be found the next a day after you have ordered the replacement.

 

[reddog81]

Looks like the mainspring from a Sig. Or possibly something else but looks similar to various Sig's.

 

[Old_Cop]

Looks like the mainspring from a Sig. Or possibly something else but looks similar to various Sig's.

My opinion also.

 

[CapnB]

Did you ever convert an older Sig P226 to the new E2 grips? That looks like the old mainspring which would have been replaced by the new one in the kit.
Good shootin',
Doug

 

[f2]

Looks like the mainspring from a Sig. Or possibly something else but looks similar to various Sig's.

That's it! I will put it in a baggie and label it lol. I remember now - I had Grayguns do their short reset on my P220.

Progression of SIG Sauer Hammer Strut and Mainspring Assemblies

 

[f2]

Of course mine is the older P220 assembly (show on the left):