Responsible gun owners have a duty to keep guns out of the hands of criminals. If you are forced to surrender your guns against your will make sure they are useless. Just in case they get lost on their way to be destroyed. For safety.
A dab of JB weld in the chamber should do the trick. Once the bolt closes, it ain't ever shooting again.
EDIT: To all the folks saying "Muh 1776!"... Only a small percentage of Americans went to war with the redcoats. A lot of people comply, for many reasons. This is for them, retailers especially, they can at least guarantee these guns don't go to Ukraine, Syria, ISIS, Gangbangers, etc.
The “well regulated” in the second amendment refers to the militias being well trained and drilled in operations, not “heavily/‘appropriately’ restricted”.
The structure of the 2nd Amendment is that the right to keep and bear arms should not be infringed IN ORDER THAT there will be a well-regulated militia. It is a preliminary requirement for a militia, not a contingency depending on a militia. A militia's regulation (training, not infringement of the right) is covered by specific duties of Congress (training and arming). Where weapon bans have been imposed at the federal level, it is because the courts found that the weapon in question was not suitable for militia purposes. I don't agree with this limitation, but it is directly opposite what the liberals would have you believe.
Excellent point. Very true.
The well-regulated militias from the newly independent states were a crucial force multiplier for the Continental Army in the War for Independence against the world's greatest military of the day.