Smith & Wesson Black Ops Linerlock A-O Knives SWBLOP3T on sale now for $44.86. UPC code 028634703548. There are 8 in stock. Black handles. 4 3/8" closed linerlock. 3 1/2" black finish 4034 steel speed assisted tanto blade with dual thumb studs. Textured aluminum handles. Black finish stainless pocket clip.