I have looked into buying one of the new Fabarm tacticals. You have to call Tristar, the importer, and ask them about it. They will tell you to have your FFL put in an order and when they (the importer) gets a large enough order, they will send in the order to Fabarm. This is only applies if they don't have the gun already in stock in the US. I can only find Canadian shops carrying new Fabarm tacticals and to import them from a gun shop up north to the states would cost twice as much (filling out customs' paper work, etc.). My local FFL didnt want to deal with Fabarm and didnt want to put in an order for me, due to their past shady warranty work he had dealt with in the past. And he is a dealer of all kind of tactical guns so perhaps that's a tip off. The new guns cost well over a $1000....I ended up figuring it was cheaper to buy a Benelli tactical, there are a few old stock NIB M1 tacticals on the auction sites for under $900.
If you look on gunbroker you see a few of the old FP-6 pump actions for sale and there was a guy selling a HK-Fabarm semi-auto not too long ago. He didnt get his price for it, pulled it, and told me he was looking into the actual price for this gun so he can better price it (but I think he ended up selling it outside of gunbroker).
Fabarm makes quality sporting guns (don't know about the quality of their tactical guns), since they aren't big in the US yet, trying to get warranty work on it or parts will become a real hassle. Some folks that I have come into contact with online who have Fabarms, have to go order parts from Canada. They look real nice and "mean" but when comparing it to a Benelli tactical, I don't see any real advantages Fabarm has over the Benelli, maybe the flip up front sight and standard rails, but price wise they are a little expensive to Benelli. To me, that's not enough to convince me to buy a Fabarm over a Benelli.
let us know what you find out....if you want a different style gun just to try out and play with, I would go ahead and try to order a Fabarm, however if you are looking for a tactical shotgun to do actual "work" with or for competition, I would not consider Fabarm and stick to a brand that is common in the U.S. (for ease of warranty work and parts).