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Discussion Starter · #1 ·
Looks like the fire pin hole on my new used M&P9 is chamfered on the bottom of the hole (closest to the mag)



anyone know if this is normal? seems very "machined" It leaves a very noticeable mark on the primers of everything i put threw it. Dangerous? are my primers close to rupturing?



Thanks











 

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My 40c looks the same way.... Ive asked the same thing and got the same feedback.
 

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It's just the design. My Stoeger (Beretta) Cougar makes in an interesting bullseye shape on the primer. And of course Glocks have the rectangular look. I'm sure they all function about the same.
 
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