Jeri,
Request a meeting with the Board to discuss this issue.
It's possible that the board is supporting such actions OR that they are unaware of it.
As others have pointed out, typically individuals serve on committees at the pleasure of the Board. That would be the whole board and not just one individual. Therefore, unless the committee members resign, the board must go through the process of voting on an individuals removal.
Question: what is in the policy that you believe violates your
right to bear arms? With the expectation that the policy says that members should not bring weapons to committee meetings, I would think that this policy would pass the common sense test and protects the liability of the Association.
It certainly wouldn't prevent you from owning a firearm or carrying a firearm on your person (providing it's in compliance with Federal/State laws). It's your option if you want to meet the rules/regulations adopted by the Board and serve on the committee or if you want to keep your weapon on you and not serve on the committee.
This would be similar to you having a parent teacher conference at your child's school. Federal/State laws prohibit you from carrying the weapon onto school grounds. If you insist on carrying the weapon, that is your right. It's your option if you want to leave the weapon at home and meet with your child's teacher or keep the weapon on you and either not meet with the teacher or be willing to pay the price for violating the law.
Similar to having the option of working to change a law you don't like, you have the option of changing this rule. It's actually easier than changing the law. You need to get yourself and others who believe as you do elected to the board OR solicit support and amend the CC&Rs or bylaws to prohibit this requirement to serve on committees.
Hope this helps,
Tim