LWRCI ACB Extractor

I’ve had 4!!!! Extractor claws break over the last year. Normal wear and tear. I don’t slam the bolt or anything crazy. But in order to keep my SIX8 running like a champ, kinda need that extractor. If there were cheaper options out there I’d definitely get a few!!!! If it keeps happening I’m gonna ditch this rifle

Title says it all. Bought two ACBs for a 6.8 SPC upper with a Daniels Defense S2W 16" barrel, mid length gas. Ejection at 3, brass is immaculate, and no signs of pressure on the brass. At 1100 rounds I started suddenly getting failures to extract, on factory Hornady 110gr black and S&B 110gr FMJ. Took the bolt out and extractor off, sure enough the claw bent out wards and there are stress cracks on the bottom. Clearly it was slipping off the case rims, not shearing the rims like an over gassed carbine length gas port. Swapped in my spare bolt and gun is back up and running. Now I couldn't find any other instances of this happening to LWRC bolts and these are popular bolts for AR builders on the 68forums, many of them pushing hot hand loads. Hoping this is just a bad run of parts.