The Al Mar SERE, SOG Team Leader, and Swamp Rat Ratmandu are very close in size. All have 3/16" thick blades. All but the Scrapper have full tangs with scales attached. The SOG has Zytel scales, the Al Mar uses Nylon, and the Swamp Rat has micarta scales. The SOG uses the new expensive 20CV Duratec stainless, the Al Mar uses S30V, and the Ratmandu, like the S5 has modified 52-100 or SR101 steel.