I just ordered a prefit SS match 223 rem varmint barrel and recoil lug and barrel nut from Jim at Northland Shooter Supply, they are in stock so I will receive them a few days. This is my first time switching barrels. I'm converting my 10 FCP 308 win to a 223 rem. Jim said that I will also need a 223 rem bolt head, a front bolt baffle, and extractor, and ejector, and mag box or a follower. I called Pacific Tool, they don't stock the 223 rem bolt head, it will be aprox a month for delivery. They also don't carry the baffle , ejector or the extractor. I checked a few places and the bolt heads are out of stock. Does anyone know where I can find the items that I need to complete this barrel switch ?