The largest of the 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 Protech will run some TR-4 with CPM-D2 steel.

• Weight: 5.5 oz
• Overall Length: 9.25″
• Blade Length: 4″
• Blade Thickness: 0.125″
• Blade Material: CPM D2
• Blade Style: Drop Point
• Blade Finish: DLC Black
• Edge Type: Plain
• Handle Length: 5.25″
• Handle Thickness: 0.52″
• Handle Texture: None
• Handle Material: 6061-T6 Aluminum
• Handle Inlay: None
• Handle Color: Black
• User: Right Hand
• Pocket Clip: Tip-Up
• Sheath: Nylon
• Knife Type: Automatic
• Opener: Push Button Auto
• Origin : USA