[Luis Gonzalez]

Where does the Second Amendment impose limitations on the sorts of weapons citizens should be able to carry (bear)?

[mrsmith]

Where does it require states to allow their citizens to own and bear any and all kinds of weapon without restriction?

If I have unfairly accused you of shamming stupidity to attack Keyes then I apologize.

[Oztrich Boy]

Where does the Second Amendment impose limitations on the sorts of weapons citizens should be able to carry (bear)?

not explicitly in the 2A, but at the time it was written, it was generally understood, and explicitly spelled out in State Constitutions, that all males (not just the the smaller group of voting citizens) had a required militia duty, and were obligated to be trained for such duty.

so "owning and carrying with proper training" will pass.