Armalite AR-50 pin protrusion

[Tempest 455]

Tried searching for this.

Anyone know the recommended firing pin protrusion length for a factory stock AR-50?

 

[whak_a_woodchuck]

I can try and measure mine, but not sure how

 

[shoots100]

Don't know the factory measurement, but I measured the firing pin protrusion of my AR50 5 times and came up with an average of .055".
That's a measurement of an old shot a lot twice re barreled left hand AR50 that touches off everything it's fed.

SJC

 

[Tempest 455]

Thank you!