I can understand putting an RFID chip in something you love very much and don't want to loose. For example: a family pet, a golf ball, or even (arguably most practical) a collectible firearm.
But 'implanting' them into your entire firearm line at the manufacture level? That seems a little much.
The Chiappa Group is currently introducing the RFID system in its production chain, applying a microchip identification to all the weapons it is manufacturing. The microchip is writable, even several times, both in the visible and in the protected area of the weapon. It is difficult to remove, therefore the microchip accompanies the weapon forever, providing all the information gathered - and upgradeable – concerning the production cycle, as well as commercial information, the registration and data on the property. It is easy to imagine that the constant tracking of the weapon constitutes a virtually total impediment to the theft or improper use of the weapon. (Partial excerpt from press release sent to me by Chiappa Firearms.)H/T: One Inch Group