Sig MCX Spear LT Upper Kit Review | Most AFFORDABLE SIG MCX SPEAR LT
This review focuses on the Sig MCX Spear LT 16-inch conversion kit, highlighting its ability to run on any M4 lower receiver. The presenter details the kit's components, including the upper receiver, handguard, and included BCG and charging handle. Key features like the short-stroke gas piston system, adjustable gas block, and quick-change barrel system are discussed, along with performance observations and comparisons to other firearms.










