I have a g21 or two, $425ish and I'm in Cypress. Also have a couple of Longslide models in the $550 neighborhood, night sights are dimming.
I've got a Glock 21 with three magazines I'd be willing to trade for an M&P45 and 3 magazines (no safety)
I've come across a Glock 23 Gen. 4 with 2 mags., box, etc. that I'd trade for a 21. Sorry no M&P.