Quote Originally Posted by Circuits View Post
The only legal way for this to happen, interstate, is if Grandpa leaves it to you in his will.

If Grandpa were to move to Colorado, then he could gift it to you with no FFL check required, because you're direct family. If you moved to California, it might also be possible, but I'm not well versed on CA handgun laws.
CA law says, between family members . They file on line at CADOJ, pay a $10 transfer fee and it's all good.