Found this in a lower parts kit

[dlbleak]

A really good reason to clean any LPK's before installing. It was stuck in the lube they are packed in. Just enough to screw up function. I used the penny as a size reference. It's a small metal pin.

 

[Pokinfun]

“Find a penny pick it up; all day long you'll have good luck”

 

[Fyrtwuck]

It looks like a SS pin used in wet brass tumblers.

 

[Nlightswampfox]

Good catch!

 

[dlbleak]

It looks like a SS pin used in wet brass tumblers.

It's smaller in diameter than that even. I can't think of what it might be.

Edit: Just got to thinking though, maybe it's the size of THEIR media that is used to clean or tumble parts before packaging.

 

[SPDguns]

It looks like the J-spring which is supposed to be INSIDE of the hammer!!! I can't quite tell from the pic. Does it have a slight "hook" on the end, hence the name "J-spring"? If so, it was incorrectly installed and it does belong in the hammer. Integral part to keep the hammer pin from falling out......

 

[dlbleak]

It's straight like a ss media pin, just much smaller

 

[swampratt]

You can get different size pins.
Once you start searching in industrial media and jewelry cleaning media instead of reloading suppliers.

 

[SPDguns]

Yes, after double checking, it's too short for a j-spring.

 

[magna19]

FOD!!!!!!!