MEGA Arms makes great AR lowers and upper receivers. MEGA news! They’re making a monolithic AR-10 rifle in 7.62 NATO that uses Magpul magazines. The new rifle is light compared to some of the boat anchor AR-10 builds we’ve seen at the SHOT show. The trigger’s pretty damned good (PDG) and the guns seems to handle well. It’s available in slimming black and an extremely fetching nickel boron (silver). If you like AR-10s, now’s the time to get your boron.