For what its worth, I manufacture yellowjacket buffers (plus hex head bolts and a variety of other 10/22 products) via my company Armed America LLC. And my own buffers AND weaponkrafts are the only two I recommend to anyone. Only Reed (and myself) have actually spent the time and money to research the various forumlas for polyurethane to find the perfect formula for this application (low shear, chemical rejection, heat and cold effect, etc.).
And I am the only one who sells 10/22 magnum buffers with a true polyurethane back brace (weaponkraft uses delron unless reed has changed.), plus oversized buffers and in matching colors for black or steel/alum receivers
So either way, My Yellowjackets, or Reed's weaponkraft's...you can't go wrong....but some of the other stuff out there is real junk..beware...even Volquartsen has changed and is now copying my design...for $5 more.
Bob