This guide details the installation of a SIG P320 Fire Control Group, slide, and barrel into the SIG MP320 Chassis to create a Personal Defense Weapon (PDW) platform. It covers attaching stocks via the rear Picatinny rail and accessories using M-LOK slots, as demonstrated by Lucas Botkin from TREX Armory. The process transforms a standard P320 into a more compact, rifle-like firearm.
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