Colt AR leaving a dimple on the next round.

[SLICE & DICE]

Would like to get some opinions on this.
When I fire a round from my Colt LE 6920 i have noticed the next round has a small dimple on the primer. It hasn't caused any problems or double taps but I am wondering if i should be concerned. Is this normal? Will the firing pin wear a little and not keep doing it.
Should i change it out?

Thanks

[J.B.]

I think it is normal. This same thing happens on my AR-15

[Mike D]

It is normal. The firing pin floats in the bolt so it moves forward when the bolt closes.

[Jason19]

Yep, firing pin is free floating.

[Razorback01]

I'm not sure on an AR, but I had a NM M1 while I was on the marksmanship team in the early 90's, it would also leave a dimple, and it would double depending on the ammo. A slamfire usually happens when you least expect it, and when it's least desireable.

[dclifton]

Common my RRa does same thing. It'll do it also when closing the bolt on a round. Not just when fired.

[LFD2037]

Completely normal.