Steel River Knives A163BD Spartan 3.5" OTF Dagger 440C Blade

The Steel River Knives A163BD Spartan delivers reliable out-the-front deployment in a compact tactical package. This double-action OTF knife combines 440C stainless steel blade construction with carbon fiber-inlaid aluminum handle materials for professional performance.

What Makes This Different

The Spartan features a dual-tone blade finish that provides both corrosion resistance and reduced glare during tactical applications. Unlike basic OTF mechanisms, this model incorporates a reinforced firing spring system rated for thousands of deployment cycles. The carbon fiber inlay construction reduces overall weight while maintaining structural integrity under stress.

Key Features

• 3.5-inch 440C stainless steel dagger blade with dual-tone black/silver finish
• Double-action out-the-front deployment mechanism
• Aluminum zinc alloy handle with carbon fiber inlay panels
• Ambidextrous thumb slide activation
• Pocket clip for secure carry positioning
• Safety lock prevents accidental deployment
• Overall length measures approximately 8.5 inches when deployed

Field testing demonstrates consistent blade deployment across temperature ranges from 20°F to 120°F. The 440C steel maintains edge retention through extended cutting tasks while remaining simple to resharpen. Law enforcement and military personnel appreciate the one-handed operation capability during equipment manipulation scenarios. The carbon fiber inlay provides enhanced grip texture without adding bulk to the handle profile.

Technical Specs

• Blade Length: 3.5 inches
• Blade Material: 440C stainless steel
• Blade Style: Double-edged dagger point
• Handle Material: Aluminum zinc alloy with carbon fiber inlay
• Overall Length: Approximately 8.5 inches deployed
• Action Type: Double-action out-the-front
• Pocket clip: Tip-up carry
• Weight: Approximately 4.2 ounces

The A163BD Spartan addresses the need for rapid blade deployment without sacrificing durability or precision. Professional users require tools that function consistently under pressure, and this OTF design meets those operational demands.