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Pro-Tech Tactical Response 4 (TR-4) Push-Button Automatic Knife - 4.00" CPM MagnaMax Stonewashed Drop Point Blade - Feather Textured Blue Anodized Aluminum Handles (T4105 F BLUE)
Overview & Heritage: The Pro-Tech Tactical Response 4 (T4105 F BLUE) is a heavy-duty, full-sized tactical automatic folding knife engineered for duty officers, military personnel, and hard-use operators who require maximum reach, lightning-fast deployment, and robust lockup. Handcrafted in Placentia, California, USA, Pro-Tech's TR-4 platform is widely regarded as one of the most reliable full-sized tactical switchblades in the world. This specialized edition upgrades the proven duty platform with revolutionary American powder-metallurgy super steel and a striking 3D-milled "Feather" textured Blue anodized aluminum chassis, delivering an optimal blend of tactical authority, high grip retention, and custom aesthetic refinement.
Blade & Performance: Featuring a formidable 4.00-inch drop point blade forged from revolutionary CPM MagnaMax stainless steel, the T4105 F BLUE provides extraordinary edge longevity, high impact toughness, and top-tier corrosion resistance. The blade is treated with a rugged working stonewashed finish that effectively conceals wear, scratches, and micro-scuffs from heavy field use. Fired instantaneously via Pro-Tech's powerful internal coil spring mechanism, its high saber grind, reinforced tip, and integrated thumb jimping excel at high-speed slicing, piercing, heavy rope cutting, and emergency barrier breaching tasks.
Handle, Lock & Ergonomics: Precision 3D-milled from lightweight, high-strength 6061-T6 billet aluminum, the handle is finished in a vibrant Blue anodization featuring a custom Feather texture milling pattern. This organic, high-traction texture provides exceptional multi-directional grip security in wet, freezing, or gloved hands without feeling abrasive against pocket fabric. Powered by a flush-mounted push-button lock mechanism with an integrated secondary manual sliding safety lock, the knife prevents accidental firing in gear pouches or pockets. Complete with a hardened steel glass breaker pommel, lanyard pass-through port, and a deep-carry tip-up pocket clip, the TR-4 is built for severe operational duty.
*Bench Notes & Field Care Guidance:*
CPM MagnaMax is an advanced powder-metallurgy stainless super steel engineered to deliver supreme edge holding ability and rust immunity. Keep the heavy automatic action operating at maximum firing speed by periodically clearing pocket lint or debris from the button housing and pivot channel using compressed air, followed by a single drop of high-grade synthetic pivot lubricant. Wipe down the stonewashed blade with a soft microfiber cloth, and clean the anodized Blue aluminum Feather handles using warm water and mild dish soap as needed.
Key Features
- CPM MagnaMax Stainless Super Steel: Premier American powder-metallurgy alloy engineered for ultimate edge longevity, toughness, and rust immunity.
- Full-Sized Tactical Duty Platform: Formidable 4.00-inch blade profile designed for military, law enforcement, and tactical emergency response.
- Blistering Push-Button Automatic Action: High-tension internal coil spring fires the heavy blade instantly with authoritative lockup.
- Secondary Sliding Manual Safety: Integrated lock switch secures the button mechanism to prevent accidental pocket activation.
- Feather Textured Blue Anodized Aluminum: 3D-milled 6061-T6 billet aluminum scales with custom Feather pattern for multi-directional grip control.
- Integrated Steel Glass Breaker Pommel: Hardened impact tip at the butt of the handle for emergency extrication and tactical utility.
- Working Stonewashed Blade Finish: Low-glare surface treatment conceals scuffs, scratches, and wear from heavy field use.
- Made in the USA: Proudly manufactured in Placentia, California to Pro-Tech's exacting precision tolerances.
Product Specifications
- Brand: Pro-Tech Knives
- Series: Tactical Response 4 Series (TR-4)
- Model: TR-4 Automatic (Feather Texture)
- MPN / SKU: T4105 F BLUE
- Clean MPN: T4105FBLUE
- UPC/EAN: 871373658033
- Country of Origin: USA
- Blade Length: 4.00"
- Cutting Edge Length: 3.75"
- Closed Length: 5.25"
- Overall Length: 9.25"
- Blade Thickness: 0.125"
- Blade Steel: CPM MagnaMax Stainless Steel
- Blade Hardness: 61-63 HRC
- Blade Style: Drop Point
- Blade Grind: Saber / Flat
- Blade Finish: Stonewash
- Edge Type: Plain
- Lock/Tang Structure: Push-Button Lock (Automatic) with Sliding Safety
- Handle Material: 6061-T6 Anodized Aluminum
- Handle Color: Blue
- Handle Texture: 3D-Milled Feather Texture Pattern
- Accessories/Hardware: Hardened Glass Breaker Pommel / Deep-Carry Pocket Clip
- Overall Weight: 5.50 oz (155.92 g)
