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So I recently bought a S&W M&P 340 for a carry gun. While dry firing it the other day I noticed that when the internal hammer drops you can see a small spark(much like that from an electric ignition lighter) shoots out of where the firing pin comes out of the frame. To be sure it wasn't just a reflection from the firing pin I tried it in total darkness and sure enough it is a slight electric spark. Any ideas to what is behind this?
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Wow, never saw that before. You should try to video it and post it.Sent from free America otherwise known as Utah. -
I wonder if that's because of the scandium alloy frame (small amount of scandium, like 0.5% or less in the aluminum, which the other 99.5% of what the frame is made from) and what is probably a tool steel (or other steel) firing pin? Certain metals do spark when they contact each other.
...or static charge built up by the spring compressing over the firing pin or something?... I have no idea
...but +1 on getting a video of it!...
Last edited by JeremyS; 11-06-2012, 2:07 PM.Comment
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BTW I just did a google search for 'firing pin spark.' Most results were on the S&W forum RE revolvers!
Apparent answer from S&W. I was sort of close:
Titanium firing pin going through steel firing pin bushing.Last edited by JeremyS; 11-06-2012, 2:12 PM.Comment
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Great links! That's about ballpark of what I was thinking too. Thanks.Comment
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DON'T DRY FIRE THAT GUN IF THERE'S GAS LEAK IN YOUR HOUSE!!!
Seriously, I have never seen a spark coming from dry firing a gun. Video is a must.The wise man said just find your place
In the eye of the storm
Seek the roses along the way
Just beware of the thorns... K. MeineComment
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reminds me of (many) years ago... I had a derringer lighter - coolest thing ever! Got it some minor issue with the law (don't even remember what it was) and they took it
*it was in my pocket, had nothing to do with why I was questioned... I wish I could remember what the hell it was though...
Anyway- OP, find a way to ignite from the spark and make a lighter out of it
"Kamala is a radical leftist lunatic" ~ Donald J. TrumpComment
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+1 for a videoOnly two defining forces have ever offered to die for you, Jesus Christ and the American Soldier.
One died for your soul, the other for your freedom.
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weird. Would definitely be fun to see a videoComment
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That's a first for me.Comment
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