Got my jse upper yesterday. I ended up upgrading to the chrome bcg, magpul handgaurd and four rail gas block. Total was $408.00. Slight scratch on the barrel from when they installed the gas block not bad. The barrel finish is a little flatter than the receiver. Other than that looks good. My sights didn't arrive yet so will just put some rounds through it to see how it cycles. Will update after shooting. Will post some pics when I get home