I've never seen handles sold seperately by Ontario for the RAT-3. One thing to keep in mind in deciding between the RAT-3 & ESEE-3, the RAT-3 is 3/8 of an inch shorter in length than the ESEE-3. In a knife of this size, it does make a difference. If you have medium to large sized hands, you will need the extra length. I recommend the ESEE-3 over the RAT-3.