Nice looking build. Good job! Got one question.
What's your reasoning for reaming the SPC chamber to SPC II? I know the AR fans are big on the SPC II but what have you gained by going to the SPC II? All you've got different is the longer throat?
My SPC barrel shoots bug holes and I'am able to jam my bullets into the lands because of the shorter throat. Not as easy with the SPC II.
Got to be something I've missed and can't quite figure it out. Inquiring minds want to know. Enlighten me as well as others please and thanks, Mike.