The Honduran international midfielder will be registered on September 1 when the club's transfer embargo is lifted but will join Ally McCoist's squad for pre-season.
24-year-old Peralta is currently part of Luis Suarez's international side which, having kicked off its summer of football against Israel in New York on Sunday, faces matches with Costa Rica and the USA in the next fortnight.
The former Vida star will then be free to fly to Glasgow to join Jon Daly, Nicky Clark, Cammy Bell and Nicky Law as a new addition to McCoist's squad.
And even though he won’t have had much of a break Arnold can’t wait to team up with McCoist and his players.
He said: “I am delighted to be joining a club with the size and history of Rangers. I had several offers from Europe, MLS and at home in Honduras but when I was told I could sign for Rangers it was an easy decision.
“I am really looking forward to pulling on that famous blue shirt and getting out on the Ibrox pitch, hopefully the club and fans will appreciate what I can bring to the team.”
McCoist said: “We are delighted Arnold has agreed to join us. We went over and watched him playing for Honduras against Panama and he performed well.
“He will certainly give us a bit of bite in the middle of the park. He actually played at right-back when we saw him but his best role is sitting in midfield.
“Arnold is very aggressive and he gets about the park well so I think he would blend in with the rest of the midfield and he will be a good signing.
“It’s great we are signing a Honduran international who is of a good pedigree and playing in World Cup qualifiers.”
The midfield player has, of course, been in Glasgow before. One of his caps was won in a match against Morocco at Hampden in last summer's Olympic Games.
He featured in three matches at the Games and has been a regular in his country's national side since.
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