The largest of our Tactical Response Series – the TR-4 offers a great multi-purpose 4” blade, secondary slide safety, built in 416 hardened stainless steel glass breaker at butt end, a MOLLE adaptable custom sheath, and the superior coil spring action Pro-Tech is famous for.

Originally designed to fulfill a specific US military requirement – the TR-4 has proven to be a perfect choice for anyone looking for a full sized, options packed automatic folder.

While most TR-4 feature 154-CM blades – From time to time we will run some TR-4 with CPM-D2 steel.  Check with your local dealer for info on TR-4 models in stock.

Black Handle, DLC Black Blade, Plain Edge.

Protech TR-4.3 D2 – Tactical Response 4