Making a new AR-15 firing pin out of a nail.  Pretty cool!

http://www.everydaynodaysoff.com/2012/07/12/substituting-an-ar-15-firing-pin-with-a-modified-duplex-nail/

How will the pd verify the microstamp when you buy a gun? Seems like a waste of money for the taxpaayers

Yep. I explained microstamping to a friend (definitely not a gun person). She thought it was a good idea till I suggested flaws (filing pin, replacing pin, leaving someone else's brass, etc.) and she decided it was a waste of time and money.

That was a cool video flyboy. Thank you for posting it. As a dedicated ak fan, I wish an ak firing pin could be made just as easily, not that I expect to need one asap.
The video kinda gives me a case of pin envy. lol   

There's a video of a guy that makes an AK firing pin out of a marshmallow and a rubber band.







Oh wait, that's just an old MacGyver episode.   

Aside from actively tampering with microstamping, every time the action cycles in a firearm, the firing pin smashes itself into the primer, which then ignites a reaction inside the case which results in a pressure range from 20,000-60,000 psi.  I have read articles stating that at the types of pressure and temperature that exist for those few microseconds in the chamber and barrel, the "hot gasses" that we all picture working the action on our ARs is more like a plasma than a hot gas.  After the bullet is fired, an extractor forcefully rips the case out of the chamber and throws it away.  Those types of operations are bad for metal parts; that's why we have throat erosion.  Add to that environmental factors like corrosion, and the fact that the average gun used in a crime is (somewhere around) 5-7 years old [citation needed], and you have a wonderful theoretical system that won't work in real life.  These are microscopically small markings on the faces of high-impact parts; would you scratch your initials into the face of a hammer?  Haha, of course not!  As one of our member's tagline reads, "The only difference between theory and reality is that, in theory, there is no difference."

There's a video of a guy that makes an AK firing pin out of a marshmallow and a rubber band.







Oh wait, that's just an old MacGyver episode.   

Hahahahaha

Aside from actively tampering with microstamping, every time the action cycles in a firearm, the firing pin smashes itself into the primer, which then ignites a reaction inside the case which results in a pressure range from 20,000-60,000 psi.  I have read articles stating that at the types of pressure and temperature that exist for those few microseconds in the chamber and barrel, the "hot gasses" that we all picture working the action on our ARs is more like a plasma than a hot gas.  After the bullet is fired, an extractor forcefully rips the case out of the chamber and throws it away.  Those types of operations are bad for metal parts; that's why we have throat erosion.  Add to that environmental factors like corrosion, and the fact that the average gun used in a crime is (somewhere around) 5-7 years old [citation needed], and you have a wonderful theoretical system that won't work in real life.  These are microscopically small markings on the faces of high-impact parts; would you scratch your initials into the face of a hammer?  Haha, of course not!  As one of our member's tagline reads, "The only difference between theory and reality is that, in theory, there is no difference."

I forgot to tell her about erosion of the firing pin...but she already decided it was a bad idea. Good point though!!