SIG MCX Gen 1 Legacy M-Lok and KeyMod Rails Listing ID: 3153636

SIG MCX Rifle chambered in 5.56 NATO (.223 Rem). This rifle is a gen 1 production, known as the “MCX Legacy”, which I believe is the best of the three. It is lighter than the Virtus and the current Spear LT model as well as being the only one in a black color and has a shorter handguard rail that doesn’t reach all of the way to the muzzle. Unlike anecdotal reports in the current Spear LT line, the Gen 1 barrel is solid without feeling muzzle-heavy.