This kit includes everything you need to build an unserialized Sig P320 M18 Bravo 9mm full-size pistol. Using the GS32 80% Insert and factory Sig Sauer OEM parts. This kit includes the insert, jig, compact sized grip module with relief cut for manual safety, lower parts kit, factory complete upper slide assembly, a 15 round magazine, and a free Sig Sauer gun carry case. SIG SAUER® world renowned firearms are the weapons of choice for many of the premier global military, law enforcement and commercial users. In our world-class facilities, we build the toughest, most precise rifles, pistols, silencers, optics, ammunition, and airguns, while offering the finest firearms training — all as a fully integrated system. Sep 22, 2020 · sig sauer – m18 m18 x-conversion kit During the Modern Day Marine virtual expo, SIG gave us a sneak peek at their new M18 X-CONVERSION Kit. The 9mm M17/18 Modular Handgun System manufactured by SIG SAUER is the most versatile pistol the US military has ever fielded.