Smith & Wesson SWBLOP4S Black Ops 4 M.A.G.I.C. Assist Liner Lock 4034 Stainless Steel 3.3-Inch Partially Serrated Blade 4.4-Inch Aluminum Handle 4.9-Ounce 4034 Stainless Steel Assisted opening knife, with thumb knob and finger accutator, liner lock and safety lock