Unfortunately, no. He is what is refered to as a cryptorchid. Mono if it's one, bilateral if it's both. I'm glad he was not represented as a gelding as uneducated or deceptful sellers will pass one off as a gelding only to discover the truth the hard way. Give him a little time to put on some weight but start discussing it with your vet because as soon as he feels good, he can get downright dangerous. It can be very costly ($1K) depending upon who does the surgery and where they are.
If he'll let you without kicking, feel around back there. You can trot him a little on a lungeline. Work him to a small sweat and if they're right there, the extra body heat will make them easier to palpate.