Product Description
The Benchmade Auto Immunity 2900BK is a compact automatic built for discreet everyday carry without sacrificing performance. This open-box example features a 2.49-inch black CPM-M4 Wharncliffe blade and a distinctive Crater Blue aluminum handle.
The CPM-M4 blade is known for exceptional edge retention, toughness, and high-performance cutting ability. Its Wharncliffe profile provides a long, controlled cutting edge with a precise tip, while the black finish gives the knife a clean, understated appearance.
A push-button automatic opening mechanism provides quick, one-handed deployment. The lightweight aluminum handle keeps the knife compact and pocket-friendly, while the locking mechanism provides secure blade retention during use.
Open Box Condition
This knife is open box. It has been removed from its original packaging for inspection and/or handling. It may show minor signs associated with being opened or handled. Please review the photos and condition information before purchasing.
Features
- Open-box Benchmade Auto Immunity
- Automatic push-button opening
- CPM-M4 premium tool steel blade
- 2.49" Wharncliffe blade
- Black blade finish
- Crater Blue aluminum handle
- Compact everyday-carry design
- Pocket clip
- Made in the USA
Specifications
- Brand: Benchmade
- Model: Auto Immunity
- Model Number: 2900BK
- Knife Type: Automatic Folding Knife
- Blade Length: 2.49"
- Blade Steel: CPM-M4
- Blade Style: Wharncliffe
- Blade Finish: Black
- Edge: Plain
- Opening: Automatic
- Handle Material: Aluminum
- Handle Color: Crater Blue
- Condition: Open Box
- Country of Origin: USA
Knife Depot Take
Our Take: The Auto Immunity is a great option for anyone who wants premium materials in a genuinely compact automatic. CPM-M4 gives the 2900BK serious cutting performance, while the small Wharncliffe blade and lightweight aluminum handle make it exceptionally easy to carry. The Crater Blue handle also gives this version a distinctive look that stands out from the typical black tactical automatic.
Specifications
| Automatic Knife | Yes |
| Lock Type | Axis Lock |
About brand
Benchmade Knife Company, Inc. set-up shop in Clackamas, Oregon in 1990 (originally founded in California in 1988). The initial knives primarily consisted of the Bali-Song knives, using a combination of outside vendors and inside processing to build finished products. And like most companies, starting out meant scarce money and big plans, using second hand equipment and limited resources.
Soon, a natural born fortitude and an undying passion to make it right and make it Benchmade, prospered into significant growth. As the product line grew so did the in-house capabilities. We began to acquire new machines and technologies including the first of several lasers, making Benchmade the first knife manufacturer to have such equipment in-house. Open minds and positive attitudes would lead to several more industry firsts over the course of the next several years.
This was only the beginning of Benchmade's breaking of new ground in the manufactured knife markets by using non-traditional materials and modern manufacturing methods in not only building knives better but, inevitably building better knives. The Designer Series was first introduced in 1991 with several custom designs being manufactured. By tapping into the custom knife makers' knowledge and combining it with our manufacturing expertise we were more readily able to offer more contemporary knife designs and innovations to the knife users.
Consecutive years of aggressive growth led to the next logical step in 1996 when Benchmade moved into its own 35,000 sq. ft. facility. A contemporary styled building complete with all of the modern equipment and amenities necessary to manufacture what has become recognized as a higher standard of specialty cutlery.
Today, Benchmade Knife Company, Inc. manufactures knives for a loyal and ever growing following of knife users. As we move into the 21st century we are poised for even more exciting opportunities, innovations and ongoing total world-class quality. Here at Benchmade we employ a simple philosophy- 'Make it cool, make it solid, make it happen and definitely make it Benchmade.'
