MikeMacCham

TGI Is set up for co witness with a collapsible stock and Bushnell red dot, as well as a 74 brake welded on as to count for total length. While the S12 has a Tapco 5 setting vertical grip, hogue pistol grip, SGM Tactical quad rail, Bushnell red dot (love those things), Pauly's polish job for the internals HIGHLY RECOMEND THAT GUY!, Warthog brake/ breach
both have bullet buttons, kinda like the cheaper one better, easy install and less threads to potentially strip.