cornstar6969Milspec Active Reset Conversion (MARC) The MARC (Milspec Active Reset Conversion) is a 3-position forced reset conversion designed to retain the look, feel, and function of a standard mil-spec safety selector. It is engineered with upgraded materials and refined geometry to improve durability, reliability, and smooth operation. The MARC uses an S7 tool steel lever for increased strength and wear resistance, paired with a heat-treated 4140 selector lever. Rounded edges and optimized dimensions help reduce binding and improve long-term performance. This system is compatible with a wide range of triggers and configurations. Some triggers may require minor modification depending on tolerances. Please review the compatibility information before purchase on our website. The MARC is intended for use with mil-spec lower receivers and requires an M16-cut bolt carrier group. For certain triggers, such as Geissele models with smaller hammer backs, an overtravel stop is recommended. When used in 9mm blowback AR platforms, a heavier buffer (10 oz or greater, or captured/hydraulic style) is recommended for reliable operation. The MARC was developed with independent improvements over other forced reset products, focusing on correct materials, proper fit, and a true mil-spec feel.
