WEST POINT — Don’t call Sasha Vujacic old — or past his prime.

In fact, the cocky, 31-year-old Slovenian sharpshooter said he believes he’s better now than when he last played in the NBA full time with the Nets in 2010-11. Vujacic has played the last four seasons in Europe, mostly in Turkey, save for two games with the Clippers in 2012.

“I feel sharper, to be honest,’’ said Vujacic, who played for the Lakers from 2004 to 2010, winning two rings as a teammate of Derek Fisher’s and a pupil of Phil Jackson’s. “Everyone has ups and downs. I went overseas and the journey was good for me.

“You make it sound like I’m 51,’’ Vujacic added. “That’s OK. I think early 30s, you’re in your prime for a guard. I feel great. I was really young when I got in the league and had the pleasure to learn from the best. When you learn from the best, you pick up things that come in handy later on. I’m a little bit wiser now. I feel very young.’’

Vujacic has looked it at West Point, with his floppy black hair and smooth-as-silk 3-point shooting touch. Vujacic has drilled his share of 3-pointers in scrimmages, has pushed the ball and has made some nice feeds. And, of course, he’s an expert on the triangle offense.

Nevertheless, it was still a shocker when the Knicks signed Maria Sharapova’s former fiance to a guaranteed, $1.3 million veteran’s minimum in late July.

“He’s changed some,’’ Fisher said. “I think he’s more mature — natural with his life experiences. He’s much more of a leader than when we played together. Those are things we’re looking from him.

“He’s helped a lot of our guys become more comfortable offensively because he recognizes where the shots are, where the plays can be made. He’s kind of a guy you can copy. When you’re open, shoot the ball and not second-guess yourself.’’

Vujacic, who has his place in Los Angeles, won’t go into detail on why he has been out of the league for so long, admitting the 2011 lockout “messed’’ him up as he fled early for Europe.

The Knicks scouted him last season when he played partly in Spain, where their European scout, Kevin Wilson, is located and where general manager Steve Mills and adviser Clarence Gaines made trips to see Kristaps Porzingis.

“They followed me overseas,’’ said Vujacic, who has a career 37.1 percentage on 3-point shots. “Once I heard what was going on, I really wanted to be part of it. I had the opportunity to learn from the best.’’

In the Lakers’ locker room, Vujacic sat two cubicles from Fisher, and in between was Kobe Bryant.

“Derek is someone who always had that leadership within,’’ Vujacic said. “I was never worried about what he’d do after basketball. Coaching was what he was meant for. Of course, he’s going to be different, but still the same guy who won five championships. He wants to win [titles]. When you have someone with that mentality, it’s a pleasure. We are following that lead.’’

The backcourt rotation is in flux. Jose Calderon is the leading candidate to start at point guard and Arron Afflalo and rookie Jerian Grant are battling at shooting guard. After that? Vujacic figures to vie for backup minutes at shooting guard with Langston Galloway.

As to why Vujacic was buried in Europe, Fisher said he thinks the new collective bargaining agreement forced teams to fill the back end of their rosters with cheaper, younger players.

“Not really a talent thing,’’ Fisher said. “He’s more than ready to do it. We’ve seen really good things from him this week. [The triangle] is not the only reason he’s here. He’s unafraid of big moments and the decision-making that has to be made during a game.He makes mistakes, but he’s very confident guy.’’