I haven't sent in a shotgun but have sent in rifles for shotgun barrels and rifles for rifle barrels. No FFL is required, I suggest sending it USPS Priority mail with Delivery Confirmation and they should have in within 3-4 days maximum from anywhere in the lower 48. Insurance is up to you if you desire, not a bad option though. Turn-around time does vary with time of year and if the barrel(s) you want are available. Average time is probably 5-8 weeks, on ocassion 4 weeks and sometimes 12 weeks!!....<><.... :eek: (if your trigger is very heavy or just otherwise lousy make sure you ask for a trigget job when it's there, it's free, just tell them how heavy and lousy it is and ask them to check and adjust it.)