If I buy a full Gen3 G17 lower from an online store which I can apply my crappy TecSol 22lr upper on it (or buy an AA 22lr upper which suppose to work alot better). So when I buy it it will get registered for just the lower right? Then when I apply an upper to it I will have to contact CFC (or local CFO?) to have to re-register as a new pistol? Is that the correct procedure? Anyone done this can tell me what's the proper procedure I need to do?
Thanks so much
Thanks so much


















































