Firing Pin Question

AR/M4 AR General Discussion
1

While cleaning after hunting season I noticed that my firing pin has a smaller flange than my spare pin. What is the difference?. PK

AR 15 002.jpg
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AR 15 004.jpg
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2

Large spool = M16

Small spool = AR-15

If you have a carrier that shrouds the firing pin, you can use either one.

3

Thanks for the reply. I did not know that. PK

4

Good info. Didn’t know that as well.

5

Now everyone go and check you BCG…:wink: