Wow! Academy is advertising the Sport II for $599.99 and calling it a hot deal, lol. I didn't know they would price match like that.This is the website that I asked academy sports and outdoors to price match to. They beat the 429.99 price tag by 5%, then after the state sales tax it ended up as 442$. It's still cheaper than buying online if you add in FFL transfer fees. I'm willing to bet if you wait a bit more, the price on these sport ii's might even dip below 400$ on sales.
https://www.academy.com/shop/pdp/smith--wesson-mp15-sport-ii-55mm-nato-semiautomatic-rifle