- Overall: 9.25"
- Blade: 4.00" 154CM, DLC Black
- Handle: 5.25" 6061 Aluminum, Brown
- Hardware: Black
- Clip: Long Deep Carry, Tip Up, Right Carry, Black
- Opener: Push Button Automatic, Safety Switch-Steel
- Glass Breaker
- Lock Type: Button Auto
- Button: Black Lip Pearl
- Weight: 5.30 oz
- Made in the USA
- Model: TR-4
The Pro-Tech TR-4 is the newest release of Tactical Response Automatic Knives from Pro-Tech Knives, an industry leader in autos. The Pro-Tech TR-4 features a 4" blade. The 5.25" ergonomically designed handle is made from T6-6061 aluminum for lightweight yet durable handling. The TR4 fires hard and has rock solid lockup. The Pro-Tech TR-4 features an upgraded sliding safety on the front of the handle so there are no accidental deployments.