At AUSA Remington Debuted a new version of the Remington ACR. This version is the model that the company plans on submitting to the Army Improved Carbine competition. It features a magnesium lower, with standard AR-15 grip and trigger guard, adjustable but non-foldable stock, carbine-length gas system, no quick change barrel (it has a new barrel nut), folding charging handle and new metal finishes. These changes help shave 1.8 lbs of weight from the gun. Photos and information are courtesy of TenPoundMonkey.