Are we? That's good news! Who is drafting the bill?
Here ya go.
Texas HR 1863, the state rep is Berman...
http://www.legis.state.tx.us/BillLookup/History.aspx?LegSess=81R&Bill=HB1863
We can argue that Federal law does not apply in this intrastate situation. We can then argue in the alternative that under any interpretation of the Second Amendment the state is free to provide for the armament of its militia.
I am hoping and advocating for other states that see tyranny coming will follow suit.