The AR50 (Jr. Series) is an Artist series solid body electric guitar model introduced by Ibanez in 1979. It was made in Japan.
The AR50 features an arched maple top on a double-cutaway mahogany body mated to a set-in three-piece maple neck with a 22-fret rosewood fingerboard with binding and pearloid dot position markers. Components include dual Ibanez Super 70 humbucking pickups with creme bobbins and no covers mounted in cream pickup rings with individual volume and tone controls, a Gibraltar Tune-O-Matic style bridge and Quik Change tailpiece, speed knobs and VelveTune machine heads.
It appears that this was a precursor to the AR50 which is similar but has the pickup selector relocated to the upper horn. The AR30, introduced in 1982, is a similar model with a slightly different control layout.
This version was apparently produced in early 1979, but gave way to the (non-Jr. Series) AR50 by mid year.