Well how familiar are you with US law, the US Constitution and US history?
Yes I see a secret government no guns list as an encroachment on freedom. To answer your question, no, not "any changes", I just have a problem with unconstitutional changes.
If you are familiar with the three things I listed above then it should be obvious why a secret government "no guns" list , operating under the executive branch, carried out with no judicial review or appeal would be unconstitutional.
You know the first amendment correct? I'm sure you understand it as well. It is quite well known.
Now imagine the government could decide without judicial process or trial that citizens had lost their right to free speech because they are a threat. No crime charged. No guilt found. No judges. No jury. The government just put a name on a list and poof there goes your right to free speech.
This would be highly unconstitutional. Thankfully the founding fathers were smart enough to write a strong set of checks and balances in the Constitution. The Bill of rights (which includes the second amendment) was written to protect exactly against the example above.