Model #0640EKSLE-B

Current Selection
440C Steel with Custom Filework
Elk with Buffalo Spacers with Nickel Silver Pommel/Guard
Carry System:
Pine Box


The 640 XL is a tribute to six employees who have devoted 40 or more years of service to Buck Knives. In the 1970’s, these young men were developing a product for Buck Knives and were an integral part in the move from California to Idaho to set up the new factory some 30 years later. Development of this unique, legacy knife was not rushed and was based on the 124 Frontiersman, a knife they all owned and worked on 40 years ago. A consensus among the six men needed to be met at every detail and aspect. It is created with one of the first steels ever used by Buck Knives, 440C, and custom filework was added to the spine. The handcrafted Elk handle was chosen as a timeless material and accentuated with nickel silver and buffalo spacers. This knife carries a deep-rooted Buck story and will be just as relevant in 40 years as it is today.
Representing the total number of years with the company these six men hold collectively, the XL is serialized with a total quantity of 259.
Made in the USA

*Please note: This knife may have a 4-6 week lead time.
Blade Shape:
Blade Thickness:
Blade Length:
6 5/8" (16.8 cm)
18.3 oz (518.8 g)
Elk with Water Buffalo Spacers
Carry System:
Display Box
Made in the USA

Available Features and Options


The crescent tip makes the blade thinner with a sharper point. This shape provides good control for detail work and cutting in tight places. It is also well suited for intentional punctures like new holes in your belt, etc. While the point of the blade is effective for detail work, it's not as strong as the thicker points on drop points and skinners.