There's this too (remember OPXS's bread and butter back then was army vehicle periscopes and still is a major part although Applied Optics has been a terrific small-priced vertical tuck in acquisition IMO):
2013 when Congress was trying to keep lines for production running in Lima (and York and Warren too I'm guessing, not sure if Warren is still active though, maybe not and can't recall off top of head- actually thinking Warren is no longer active for tank production, amybe they do parts or something) http://www.foxnews.com/politics/2013/04/28/army-says-no-to-more-tanks-but-congress-insists.html
2014 in the very dark days (and 2014 was when OPXS made a terrific vertical integrated purchase of L-3's Applied Optics Dallas division I believe):
Anyway, things are picking back up in the cycle with Abrams funding increasing this year and probably next. The AMPV could be a real nice win for OPXS and commercial side backlog has been accelerating (although there's likely some seasonality to that component so I'm expecting near term sequential slowing there for a little bit).
Throw in that OPXS picked up the valuable Dallas Applied Optics division on the cheap and has been winning nice orders too, they have a brightening future ahead of them IMO.