This is my attempt at addressing the debate over the way a Contender or Encore is configured and/or registered (i.e. pistol/rifle). I'm an Encore owner so I have a vested interest in this subject, but with all the posts on this topic I just wanted to add a "reasonable officer's perspective". This is to go without saying that there are some hard core law dogs out there that can take things to the limit.
First off you will have to be involved in a serious violation of law or hunting/shooting accident for this to be an issue. Officers do not routinely grab guns off of people and check serial numbers to see how they were registered.
When a violation is observed there are a couple of main checks done. The first would be to ascertain if the subject with the gun is a convicted felon. If so, it's off to the pokey. Convicted felons cannot carry firearms. The second check would be to see if the gun is listed as stolen. Again, if so off to the pokey.
Now comes the part where the officer could possibly find out if how the gun was registered. It is usually mandated by individual department policy that an ATF check be done on the firearm's history if it is stolen, possessed by a felon, or involved in a serious accident or crime. Then a complete workup will be done by the ATF that will show when/where it was manufactured, shipped to, purchased from, registered as (i.e. pistol/rifle) etc, etc.
I honestly don't think that most officers out there know much about Contenders/Encores and know they can convert from pistol to rifle and back again. So I don't see them hassling you to see how the gun was registered. Maybe they do this in some states, but I don't do it here. It's too much work to be just "fishing". The ATF is the agency really concerned about this stuff and to be honest with y'all, I think they have bigger fish to fry.
Once again, not legal advice, just an officer's persective.
Ranger413