Remington ACR Basic — entry-level version of the Adaptive Combat Rifle without enhanced features. Fixed stock, standard trigger. Discontinued due to high cost and limited market appeal versus the AR-15 platform. Type: Rifle Action: Gas-Operated Caliber: 5.56x45mm NATO Capacity: 10 Year introduced: 2010, USA Weight: 112 oz Overall length: 44.25" Status: Discontinued Intended use: sport