How to Convert Your AR to a Sig Spear LT
This video details a conversion of an AR-15 platform rifle into a SIG MCX-SPEAR LT configuration using a dedicated AR Conversion Kit. The presenter highlights the benefits of this upgrade, including the monolithic upper receiver, piston-driven system for enhanced reliability, and modularity. The video breaks down various components involved in the conversion, such as the lower parts kit, safety selector, grip, trigger, rear adapter and stock, muzzle device, BCG, and charging handle. It aims to help viewers understand if this upgrade is worthwhile for their AR-15, promising next-level reliability, reduced recoil, and increased durability. A full parts list is provided via a Google Sheets link.












