I have a ATONE on my 12 FV,they are Not pillar bedded,they have a 1/2"long plastic pillar on front screw hole.Highly recommend from Stockys Stocks,Savage steel pillars about $ 15. I installed the steel pillars and Glass bedded the action,It's rock solid. Can't beat for $190 and shipping,about 1/2 the cost of anyone elses. They now have Thumbhole ATONE