The Firearms Freedom Act of 2015 insures the following:
I: Removing suppressors from the National Firearms Act of 1934. Instead of requiring an onerous $200 tax stamp and months of delays in ATF processing, suppressors should be treated like firearms, or perhaps be declassified entirely.
II: Adding explicit protections for firearms and accouterments of contemporary militia utility. The Second Amendment was written to protect the pre-existing natural right to armed self-defense. It was written by very wise men who could privately own every military arm of the day
III: Adding explicit protections to common rifle ammunition. At this very moment the ATF has been attempting to ban the sale and restrict the development of common service-grade rifle ammunition such as XM855 and SS109.