My go-to buffer system in top-shelf lfar and ar-15 builds - JP Enterprises Gen 2 Silent Captured Buffer Spring System

This is all I put in my AR builds anymore. It's about $100 more expensive than the standard buffer and spring, but I can usually save that money somewhere else in the build or in my optics selection. Being able to easily and quickly tune the buffer spring rates and buffer weights with interchangeable parts in all of my AR rifles is a nice place to be. More importantly the rick-rack grinding noise is gone from my buffer tube when I shoot now. This noise is just a distraction and I do get used to it after I shoot a bit, but it's an annoying distraction that is out of my life now. That's worth more than $100 to me.