hmmm, except for ebay you're a little to late to the party
Series 1 has been released twice already and sold out in no time both times
best is hoping for a third release of #1
keep your eye on the E-tailers like VE, TM, HLJ, etc,...
Edit: The (Strike) armor will fit all Valks that have been released thus far
it may not be "canon" (slight pun intended) to fit the strike cannon on Max's 1A
but that's personal preference