I just purchased one of these. It was a Maine based company close to me and got one that still said Windahm Maine on it. I understand the moved to NY. I just wanted to throw out that it ran perfect out of the box with 30 round mags shooting a mix of WWB, PMC, and cheap steal cased Herters. My first AR type rifle. Wow did that thing get hot. Anyone prefer any must have upgrades to the gun? These are new to me and wanted to pick the brains of the ones in the know. Thanks Wanna kill these ads? We can help!