Yes, you would still have to click, but currently the search button is rather small compared to search box - with search box there is less precision required and also it is instantly recognizable while one has to actually look for the search button on the page. But it was just a suggestion. Regarding lightbox - recently I've taken liking to http://dimsemenov.com/plugins/magnific-popup/ - especially from user's side, since it's quite pretty (and with zoom also feels responsive). But that's off-topic (it's probably not good idea to mix standalones into suites).
Just my two cents of feedback: 1) having search box accessible by default (like it was before redesign) is in my opinion crucial for any database, so it would be nice to have it back (instead of having to click on search button first) 2) weapon modification previews seem to have some loading issues into lightbox - not sure what is the problem, but lightbox is taking rather long to open while just directly opening the linked image is instant 3) also, some pictures seem to be saved as PNG with rather large filesize - for example http://www.tswdb.com/wp-content/uploads/2015/03/SG_Gilded-Cannon_gold.png (might be just those recent ones though)