AR-30A1 now has muzzle brakes with threads that are standard for suppressor industry(no need for adapter). .338 Lapua version has 26" barrel, .300 Win Mag has 24" barrel. There is Standard rifle and Target Rifle version. Target Rifle version comes with adjustable stock.
Price is from $3264 to $3599
AR-50A1 is now available in 416 Barrett caliber
Price: $3359
AR-10A4 Law Enforcement Carbine is chambered in .308 and has 16 inch barrel. It has ERGO F93 Stock.
Price: $2199
From: Armalite