I did more googling and realized it wasn't coming apart with out destroying something. The plastic clicker was not strong enough to push the coupler out. I grabbed the coupler with some locking pliers and wrapped the body with thick rubber and held it with some other pliers. I was able to twits out the coupler but did mess it up also. I will just order another kit. This was a custom order for a cousin. I also had to refinish one tube 2x because of sand through. This pen was jinxed.