The answer is simple, but is in three parts:
Part 1.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Source: Constitution of The United States of America"
Part 2.
Main Entry: in·fringe
Function: verb
Inflected Form(s): in·fringed; in·fring·ing
Etymology: Medieval Latin infringere, from Latin, to break, crush, from in- + frangere to break — more at break
Date: 1513
transitive verb
1: to encroach upon in a way that violates law or the rights of another <infringe a patent>
2obsolete : defeat, frustrate
intransitive verb
: encroach —used with on or upon<infringe on our rights>
synonyms see trespass
— in·fring·er noun
Source:
http://www.merriam-webster.com/dictionary/infringe
Part 3.
SCOTUS holds that RKBA is an individual right, not a collective right.
SCOTUS / Heller
http://www.supremecourtus.gov/opinions/07pdf/07-290.pdf
Summary:
If 2A affirms the right to keep and bear arms, without infringement, and if Heller affirms that right is individual, then clearly anything that violates that right is unconstitutional.
Keeping and Bearing encompasses storage and carry, obviously. Placing restrictions on those are clearly infringements.
I'm a bit handler by trade, not a lawyer, so I'm sure someone will pop up with a reason why this clear logic isn't correct, even though it is.
Now, since I'm a bit handler, I'm off to handle some bits.