A rugged version of the 530 and while not as light because of the G10 handle scales this one is every bit as slim and much more rigid.
SPECIFICATIONS
Overall Length Open: 189 mm
Overall Length Closed: 106 mm
Blade Length: 83 mm
Blade Thickness: 2.29 mm
Style: Axis Lock, Black Blade, Part Serrated
Steel: 154CM
Hardness: 58-61 HRC
Handle Material: G10, Grey and Black Textured
Weight: 60 Grams
Made in: USA
Product Code: B531SBK