With all do respect, I wouldn't trust that BCG for any "serious" use. YSF fasteners, and nitrided 9310 bolt. That's a combination notorious for shearing and premature failure. The rest of it looks plenty adequate. Only change I would make is a proper milspec BCG in phosphate or chrome.
just a quick correction, their bolts are made out of 9310, not 158 carpenter. I just looked at the link you posted for the upper and thats what the spec sheet shows. still a good bolt but not as robust as a carpenter would be. I have one of their CHF uppers and its a great shooter!
See Reno May about this. Interesting. Not necessarily Apple's to Apple's but right after I watch this, that video came up. You actually do a lot of your own QA and QC to take care of possible inherent deficiencies
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Very good video man, you're a natural on camera.