ROME (Reuters) - Fincantieri's newly-acquired Underwater Armament Systems (UAS) submarine business has a "very positive" outlook, the shipbuilder's chief executive Pierroberto Folgiero said on Tuesday.

The state-controlled shipbuilder bought UAS from defence company Leonardo's in a deal giving the submarine business line an enterprise value of 415 million euros ($449.15 million).

In a call with analysts, Folgiero declined to be specific about the impact of the UAS acquisition for Fincantieri's prospects.

"There will be time for details, what I can say is that UAS will have a very positive outlook. I believe UAS has a lot of growth ahead of it," Folgiero said when asked about specific guidance for the business, once incorporated into the group.

Fincantieri said in slides that the deal would be "margin accretive from the outset" with UAS increasing the group's EBITDA margin to 5.5% pro-forma 2023 from 5.2%.

Last year UAS posted 160 million euros in revenues and 34.1 million euros in core profit, it added.

($1 = 0.9240 euros)

(Reporting by Giulia Segreti, editing by Gavin Jones)