Aviator shape and a 140mm metal temple define what the RB3562 needs in a replacement arm, matched to its metal front. A compatible arm has to hold that length and finish closely, since aviator styles tend to show a mismatched arm more clearly than boxier shapes do.

A new pair of aviators costs considerably more than a matched replacement arm, and that math rarely favours buying a whole new frame just because one temple bent or snapped. Swapping the arm on the RB3562 is the more practical fix when the front is still in good shape. A compatible aftermarket arm at the correct 140mm length is usually the quickest way back to a proper fit. Checking both temple arms at the same time is worth doing, since a matching pair keeps the fit consistent on both sides going forward.