I would like to start out by saying that I am not a physicist nor am I an operator. That being said, by reading you guys' posts, im sure you guys have studied on the subject and had more experience building and tinkering with them than me. I have three 5.56 builds, all Aero. When I compare my (let's call it "stock rifle") with the rifle In this post, there is a difference. The "stock rifle" is the same brand everything except for it has milspec buffer spring and weight and it doesnt have an AGB. Both have the same VG6 muzzle break. I can tell you that the tubbs spring, spikes buffer, and AGB is softer shooting than the other. It's not a night and day difference, but It is a difference. I will try it today with a standard weight and report back. Thanks again guys for the info!

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