I have cleaned the barrel but have not removed the bolt and cleaned it for 3 sesions about 600rnds... I found out today that their is no firing pin spring and ( SKS came to mind ) of slam fires?

 

The bolt and lugs were pretty dirty i opted to put the bolt in the ultrasonic cleaner as it is difficult to get into it to clean it good..That does the trick and blow it dry..

 

So question is has their ever been a slam fire with an AR-15?

NO w/ AR

 

YES w/ SKS

The SKS i knew about hence the murrays firing pin setup..

 

Noticed that the firing pin in the AR was pretty sticky so i figured it may be possible..

don't worry about it, and stop over cleaning your guns, you'd be amazed how much crud you can have in a AR as long as you keep it lubed.

High primers (not set fully in the case's primer pocket) and thin primer cups (did I hear someone whisper Federal?) are the main culprits that cause AR slam fires.

 

Most important when reloading .223 brass that after you prime, you stand the case on end (primer down) on a flat surface. It must not rock or wobble.

 

Slam fires are Gene Stoner's way (from the grave) of reminding you about muzzle discipline!