Palmetto just delivered my complete upper with 18" FN CHF chrome lined 223 Wylde 1 in 8 bbl with rifle length gas system, pinned gas block and Giesselle 15" MLOC handguard. I have read everyone's recommendations and advice. So, I will be taking several different buffers to the range with me today. The majority of you recommend the standard carbine buffer so I will start with that one. I will report back.