The Gun Hammer SAO (spring assisted opening) knife is modeled after Darrel Ralph's custom design. The ergonomic tactical (ETAC) grip handle is 3D machined from aircraft grade aluminum with a black finish. The radian style blade is made from damascus steel, and is easily deployed using the flipper or thumb studs. The titanium lock tab is 0.09" thick for solid lockup. Comes with a padded black nylon pouch.