The 2900BK-1 AUTO IMMUNITY™ knife is the ideal choice for those who require a compact, easy-to-conceal folder or automatic knife. Easy-to-conceal folder that is effective for both daily utility and as a backup edged weapon.The clipped Wharncliffe blade style coupled with the CPM-M4 has outstanding edge retention. The steel supports the fine point of the blade. This is effective as both a utility blade and for self-defense as it focuses all of the knife's cutting force to the needle-thin tip. The included lanyard extends the handle giving this small knife a full grip that is easy to access. The Immunity features textured aluminum handles, an AXIS lock that doubles as the automatic opening mechanism. 

CPM-M4: A high speed tool steel with an excellent combination of impact toughness, strength and wear resistance. Ideal for cutting tools CPM-M4 is relatively easy to sharpen despite the high wear resistance. Powder metallurgy offers finer grain and clean composition for strength and toughness. Low corrosion resistance.

• Blade Length: 2.49" (6.32 cm)
• Closed Length: 3.46" (8.79 cm)
• Overall Length: 5.94" (15.09 cm)
• Blade Material: CPM-M4 Super Tool Steel
• Blade Thickness: 0.090" (2.286 mm)
• Blade Hardness: 62-64HRC
• Blade Style: Wharncliffe
• Blade Finish: Cobalt Black Cerakote
• Handle Material: Flat Dark Earth Anodized 6061-T6 Billet Aluminum
• Handle Thickness: 0.50" (12.70 mm)
• Locking Mechanism: Auto-AXIS
• Pocket Clip: Deep Carry, Reversible, Tip-Down
• Weight: 2.29 oz. (64.92 g)
• Class: Black
• Made in the USA