Ar buffer bolt has a circle on the face

[pinheadbob2002]

After shooting some Milwall reloads rounds threw a 20 inch stag left handed upper, I noticed my buffer bolt has a circular marking on it from the bolt carrier. The chrome looks like it chipped off.
I tried 2 bolts each with a new spring. The last buffer bolt and spring came straight from RRA. Originally I thought my gun show buffer and spring where imported junk.
The rifle feels normal (or at least what I remember from my army days.) I do not remember the buffer bolt looking like mine does now.
Other then the circle on the face of the buffer bolt - all looks normal.

What could my issue be? To hot of ammo? I have put 400 rounds of the same ammo threw it. Maybe the 20 inch barrel is generating too much force? I see most people at shooting the 16 inch barrels.

[Centurion_D]

My bolt face has a round mark on it from the recoil of the bolt. I wouldn't worry about it..it should be fine..

[proraptor]

I also have the same marking and my rifle shoots fine

[Technical Ted]

There's a burr on the aft end of the bolt. As you fire, the buffer may rotate and the burr is wearing off the anodization--it's not chrome.

It's common.

The common solution is to take some emory cloth to the edges of the rear bolt carrier and try to smooth them out.

A lot of people just go with it.

[deez]

A buffer pad is available that will help protect the face of the buffer. You just peel off the backing and press into place.

http://www.midwayusa.com/eproductpag...campaign=10636

I have used it with good results.

[PIRATE14]

You guys are gettin pretty anal, they normally all do this......by the time you wear these out.....it'll be time for a new upper and maybe a new rifle....

[slick_711]

Originally Posted by PIRATE14

You guys are gettin pretty anal, they normally all do this......by the time you wear these out.....it'll be time for a new upper and maybe a new rifle....

+1

You guys worry too much, your rifles are just fine, its a wear mark, in a spot that will take much much more wear before it's an issue. It's a tool remember? Being worried about the way it looks outside is maybe understandable, but don't go worrying about the aesthetics of the inside of your rifle, you'll never be happy.

[xenophobe]

Originally Posted by PIRATE14

You guys are gettin pretty anal, they normally all do this......by the time you wear these out.....it'll be time for a new upper and maybe a new rifle....

Yeah, it's pretty funny... people shoot their weapons but get disturbed because it shows signs of normal wear. heh

[ocabj]

Some people in here would cry when they see all the dings and scratches on some of my uppers. The 5000 round old Compass Lake upper that I use for practice has some nasty scratches from the sling hooks rubbing against them.

[rkt88edmo]

Does someone sell something I can add to my carrier to make a happy face instead of a circle?

[Paratus et Vigilans]

Originally Posted by rkt88edmo

Does someone sell something I can add to my carrier to make a happy face instead of a circle?

I think you can get one here:

www.bubba_gump_gun_company.com

[Paul]

Depends - if the buffer is slamming the back of the buffer retainer pin you'll a pattern with little "tick" marks the lenght of the buffer retaining pin. This is caused by a lower with the buffer retaining pin hole drilled a few thousandths of an inch too far forward. I had a Hesse receiver so mangled.

Eventually the pin will break and the buffer will not get trapped by the pin when the weapon is shotgunned open - bummer. You can rebate the edge of the buffer a bit to reduce/prevent the damage.

[pinheadbob2002]

interesting that is normal, like I said I do not remember my M-16 in the Army doing that. Guess I forgot.