** Defense firm V2X's VVX.N shares rise 1.3% to $51.54 premarket

** Company says it has been awarded a $921 million contract to support the U.S. Army's training devices

** V2X will modify and support devices used in live military training exercises, such as simulated weapons and targets

** The original 5-year contract can be extended by 3 years and then another 2 years, company says

** Company's shares rose 14.8% in past 12 months

(Reporting by Kamal Choudhury in Bengaluru)

((Kamal.Choudhury@thomsonreuters.com))