Benchmade – 2900BK-1 – Full Immunity – Automatic Knife – CPM M4 Coated Wharncliffe – 6061 T6 Aluminum – Flat Dark Earth


Full Immunity – Automatic Knife – CPM M4 Coated Wharncliffe – 6061 T6 Aluminum – Flat Dark Earth

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SKU: 610953206567 Categories: , , GTIN: 2900BK-1
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The 2900BK-1 AUTO IMMUNITY™ knife has been meticulously designed to cater to the specific needs of federal employees and individuals bound by strict blade length regulations, especially within federal buildings where carrying a blade over 2.5” is strictly prohibited. Furthermore, numerous jurisdictions enforce similar blade length restrictions on both manual and automatic folding knives. If you’re in search of a compact, easily concealable folder or auto knife that excels in both everyday utility tasks and serves as a discreet self-defense tool for non-permissive environments, look no further.

Precision in Design:
– The AUTO IMMUNITY™ boasts a clipped Wharncliffe blade style expertly crafted from CPM-M4 steel, renowned for its exceptional edge retention.
– This high-performance steel not only upholds the knife’s needle-thin tip but also ensures effectiveness as both a utility blade and a self-defense tool.
– The knife’s design is optimized to concentrate all cutting force on the razor-sharp point.
– Additionally, the included lanyard extends the handle, providing a secure and comfortable grip.

Born in the Midst of a Pandemic:
– The AUTO IMMUNITY™ was conceived, designed, and developed entirely during the pandemic, which inspired its fitting name.
– This knife stands as a testament to innovation and adaptability, addressing the evolving needs of today’s world.

– Blade Length: 2.49” | 6.3246cm
– Blade Thickness: 0.09” | 2.286mm
– Open Length: 5.94” | 15.088cm
– Closed Length: 3.46” | 8.788cm
– Handle Thickness: 0.5” | 12.7mm
– Weight: 2.37oz | 67.188g

– Blade Edge: Plain
– Blade Finish/Color: Cobalt Black
– Blade Steel: CPM-M4 (62-64)
– Blade Style/Shape: Wharncliffe
– Clip Type: Mini Deep-Carry
– Clip Position: Tip-Up
– Glass Breaker: No
– Handle Material: Aluminum
– Handle Color: Flat Dark Earth
– Lanyard Hole: Yes
– MOLLE Compatible: No
– Use: Tactical
– Blade Style: Plain Wharncliffe

What’s more, you can experience this item firsthand by holding, inspecting, or even taking a selfie with it at our local store, Sharp Things OKC, situated at 6610 N. May Ave., Oklahoma City, OK 73116. Alternatively, you can make a confident online purchase at Rest assured, you will receive world-class customer service in either setting. Don’t miss out on this exceptional product – add it to your cart and your collection today. Feel free to reach out to us 7 days a week anytime between 9 AM and 9 PM at 405-286-2112 with any questions.

Additional information

Weight 0.25 lbs
Dimensions 5 × 2.75 × 1.75 in


Blade Material

Blade Finish

Blade Length (Inches)

Handle Material

Closed Length (Inches)

Open Length (Inches)


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