So far, my home-made anti-cant buffer seems to be doing the trick. The POF roller cam pin is a neat little piece too, and seems to being serving its intended purpose. I was only able to run three mag through it last weekend for function check, but it showed no more wear and no shavings in the lower. So I'm calling it a success until further notice. Cost me $27.50 and about 3 hours.
The kit costs like $400 ( your local prices may vary ) but if you absolutely HAVE to have a piston system, this kit is well made and will allow you as an end user to upgrade your existing AR upper without much trouble at all.
Waitaminutenow! Did Dillinger just refer to a piston conversion as an "upgrade"???
He's going over to the dark side.
Dead Bears, the only good kind.