The Benchmade Auto Immunity is a premium compact automatic knife built for high performance, legal compliance, and everyday practicality, combining CPM‑M4 steel, robust ergonomics, and Benchmade’s proven Auto‑AXIS mechanism.

• Overall Length: 5.95"
• Blade Length: 2.49"
• Cutting Edge: 2.24"
• Blade Width: 0.88"
• Blade Thickness: 0.09"
• Blade Material: CPM M4
• Hardness: 62-64 HRC
• Blade Style: Wharncliffe
• Blade Grind: Flat
• Finish: Black
• Edge Type: Plain
• Handle Length: 3.46"
• Handle Width: 1.00"
• Handle Thickness: 0.50"
• Handle Material: Aluminum
• Color: Blue
• Frame/Liner: Steel
• Weight: 2.29oz.
• User: Right Hand, Left Hand
• Pocket Clip: Tip-Up
• Knife Type: Automatic
• Pivot Type: Washers
• Lock Type: Crossbar Lock
• Brand: Benchmade
• Model: Auto Immunity
• Model Number: 2900BK
• Country of Origin: USA
• Best Use: Everyday Carry, Tactical
• Product Type: Knife