Protech Tactical Response III Black TR-3 PS w/ Grooves Bead Blast Serrated Blade. This Tactical Response III has a bead blast finished 154-CM stainless steel blade with a partially serrated edge. The black anodized aluminum handle has grooves milled on the front face, while the back face is smooth with a tip-up carry pocket clip. The hardware, push button and clip are bead blast finished. The TR-3 is a knife that won't let you down. It fires hard, locks up like a rock and feels great in hand. The slim design sits comfortably for pocket carry.