The MCX SPEAR is Sig Sauer's submission to the U.S. Army Next Generation Squad Weapon Program - a program intended to replace the current M4A1. This advanced AR-Platform comes fully equipped with a wide array of Sig exclusive features and user-friendly designs. The MCX SREAR is outfitted with fully ambidextrous controls including the safety and bolt release, as well as two non-reciprocating charging handles, one mounted on the left side and one at the rear. To ensure superior accuracy, the MCX SPEAR utilizes a Chrome Lined DLC barrel and a 2-stage match trigger.