Bolt Teeth Broken

[BigCumfy]

I am very new to firearms and just finished building/assembling my 1st AR 15. I brought it to the range today to shoot it. Checked everything. Loaded it, chambered a round, turned safety off, pulled trigger, and dirt flies behind target. Then I check to see if my gas tube and BCG chambered the next round. It looked good, then I fired. Tried to fire the 3rd round and noticed my bolt jammed onto a bullet. I released the mag and cleared it out. Then tried again. Again, the bullet didn't go into the chamber and the bolt was pressing on it. As I clear the bullet out again, some metal fragments came out. I realize its the teeth on the bolt. My friend built the exact same rifle and his is fine. Only thing different was the BCG. However both NiB, just different companies. Any ideas why this would happen? Bad BCG? Too much/not enough headspace? I'm sure its my fault, however, any help would be appreciated. Again, I am very new to firearms and AR15's. This is my 1st rifle/ar15. Thanks in advance for your time and suggestions!

[technique]

That's (although I've done it twice) not normal.
Return it to your manufacturer.

Share with us a few more details, what ammo, what companies make the parts your gun consists of, who assembled it...etc

[Kappy]

Aside from the defect, a nice BCG. I would recommend contacting the company and seeing what they can do for you.

[BigCumfy]

That's (although I've done it twice) not normal.
Return it to your manufacturer.

Share with us a few more details, what ammo, what companies make the parts your gun consists of, who assembled it...etc

Thanks for your prompt reply! I was using New Federal Americal Eagle .223 ammo purchased from Walmart. AR details below.

Spikes Upper/Lower
Spikes FN CHF 16" Barrel
RRA LPK
WMD NiB BCG

[Mr. Meeseeks]

That's (although I've done it twice) not normal.

Tech, given that it's a decent bolt, what what would cause this kind of damage? This is the first time I've seen anything that extreme.

BigCumfy's pic:

[BigCumfy]

Another thing, should I be worried about my Upper and/or lower and any internal parts being damaged as well?

[BigCumfy]

Tech, given that it's a decent bolt, what what would cause this kind of damage? This is the first time I've seen anything that extreme.

BigCumfy's pic:

Yes, that damage in 2 rds fired seems EXTREME.

[calishine]

Big,

What part of the rifle did you assemble?

[G38xOC]

whoaaaaaa

[LovingTheYear1911]

Is the BCG aligned correctly with the chamber? Looks like it may of been off and the teeth slammed in the chamber causing them to break. Is the chamber damaged at all?

[818gtiguy]

This is why you should buy HP and MPI bolts....High pressure tested and magnetic particle inspected. That bolt for sure missed that process.

[BigCumfy]

Big,

What part of the rifle did you assemble?

I assembled the whole thing.

[BigCumfy]

Chamber and feed ramps seem fine. If the gas tube was slightly off would it cause the BCG to not properly align?
ImageUploadedByTapatalk1340587494.982903.jpgImageUploadedByTapatalk1340587517.026841.jpgImageUploadedByTapatalk1340587539.791365.jpg

[Munny$hot]

Do not fire your rifle again until you have it head spaced. If you assembled the barrel to upper receiver than yes it is your fault but if bought a complete upper and put together than cmmg is to blame unlesss your bolt/carrier is defective or out of spec WMD is to blame. I would contact both companies ASAP. CMMG has excellent customer service and im shure they will handle it as if you where their only customer.

[BigCumfy]

Do not fire your rifle again until you have it head spaced. If you assembled the barrel to upper receiver than yes it is your fault but if bought a complete upper and put together than cmmg is to blame unlesss your bolt/carrier is defective or out of spec WMD is to blame. I would contact both companies ASAP. CMMG has excellent customer service and im shure they will handle it as if you where their only customer.

Yup I guess it was my fault. I did assemble it all. I don't think I can check headspace with a broken bolt. WMD has been contacted and if I'm lucky and they send me a new one, I will check headspace. Thanks!