This cock seems to be in order. You have the correct paperwork and your cum magazine in under ten rounds capacity. Your cock is over 15.611 inches which exempts you from having to register it as a small cock and excludes you from the required $200 ATC tax stamp and registration as a small cock or NCA device. Please, carry on with your EARNED constitutional right to posess and display and use your cock, as it is within the required limits. Any, smaller, more concealable cock, capable of sustained or automatic fire, must be reported immediately. The 2nd amendment says, and I quote:

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear their cocks shall not be infringed.