9MM AR-15s seem to be getting more popular these days. 9mm ARs are nothing new, they’ve been around for decades, but the new trend seems to be AR lower receivers that accept Glock magazines. Most recently there was the Angstadt Arms UDP-9 from SHOT Show 2015 as well as a few others on the market. Well New Frontier Armory just posted a sneak peak of their budget friendly AR lower that works with any 9mm Glock mags. They just started production and should retail at just $169.99. Check out newfrontierarmory.com for details.