Improve your pistol's ergonomics and utility by combining the MPX/MCX mounting system and the Strike Industries patent-pending stabilizer design. Designed to work with the existing receiver cuts, the Stabilizer collapses to an extremely compact size. The stabilizing fin has been ergonomically cut to provide a superb stabilizing interface along all planes. Features: 3-position adjustable Slim design, low-profile footprint Enhanced pistol stabilizing Interface Drop-in compatible for Sig MCX/MPX