Product Description
ntroducing the Benchmade Auto Immunity (Model 2900BK), a mid-sized tactical/EDC folding knife designed for those who value compact utility and ease of concealment, especially where blade length is restricted. This automatic folder features a highly effective 2.49-inch Wharncliffe plain edge blade crafted from premium CPM-M4 super steel (58-60 HRC), which ensures it can withstand long, hard cuts before needing sharpening. The Wharncliffe's accessible tip makes cutting tasks easy without awkward angles. The handle is built with sturdy yet lightweight Crater Blue Anodized Aluminum scales over steel liners, providing durability without sacrificing comfort. The blade fires instantly via the ambidextrous Automatic AXIS® Lock mechanism. This reliable auto knife is proudly Made in the USA.
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2.49" Wharncliffe plain edge blade made from premium CPM-M4 super steel with a Black Cerakote finish.
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Reliable Automatic AXIS® Lock mechanism with ambidextrous opener for rapid, secure deployment.
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Textured Crater Blue Aluminum handle scales; exceptionally light at only 2.29 ounces with a reversible deep-carry clip.
Specifications:
| Product Type | Automatic | |
| Brand | Benchmade | |
| Product Name | Auto Immunity | |
| Model # | 2900BK | |
| Overall Length (in) | 5.95 | |
| Closed Length (in) | 3.46 | |
| Blade Length (in) | 2.49 | |
| Blade Thickness (in) | 0.09 | |
| Blade Material | CPM-M4 | |
| Blade Hardness (HRC) | 58-60 | |
| Blade Style | Wharncliffe | |
| Blade Edge | Plain | |
| Blade Grind | Flat | |
| Blade Finish | Black | |
| Handle Material | Aluminum | |
| Handle Finish | Crater Blue | |
| Lock Type | Axis Lock | |
| Clip Position | Tip Up | Left/ Right | |
| Weight (oz) | 2.29 | |
| Origin | USA | |
| Blade Range | 2-2.99 |