Free Shipping & Free Returns*

EXPEDITED SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Restriction Government Restriction
Blade Length:
3.375 in
Blade Material:
CPM-S35VN Steel
Serrated:
Non-Serrated
Blade Shape:
Drop Point
Handle Material:
G10
Handle Finish:
Textured G10
Blade Finish:
Stainless Steel
Handle Color:
Black

Code: RN-KN-BUC201-0040BKS

MPN: 0040BKSB/13247

UPC: 033753162008

List: $235.00Save 19%
$189.99

Product Info for Buck Knives 040 Onset Folding Knife

The Buck Knives 040 Onset Folding Knife is here at Opticsforyou.com and as usual we offer unbelievable prices and discounts 19% Off!image

Purchase your new Buck Knives 040 Onset Folding Knife from Opticsforyou.com today and you will appreciate the easy checkout process, fantastic customer service, Free Shipping policy and information on easily tracking your order.

Modern Sleek and tough, the 040 Onset is the upgrade to your EDC needs. With a black G10 handle this framelock provides security and strength when in use. Ball bearings and blade flipper ensures smooth, one hand opening, while a removable clip alows for easy carry. A full flat grind blade withBos heat treated S45VN steel offers ultimate performance.

WARNING: California`s Proposition 65

Specifications for Buck Knives 040 Onset Folding Knife:

Manufacturer: Buck Knives
Blade Length: 3.375 in
Closed Length: 4.875 in
Blade Material: CPM-S35VN Steel
Serrated: Non-Serrated
Knife Application: Folding Blade
Overall Length: 8.25 in
Blade Shape: Drop Point
Handle Material: G10
Handle Finish: Textured G10
Blade Finish: Stainless Steel
Blade Thickness: 0.12 in
Lock Type: Framelock
Handle Color: Black
Quantity: 1

Features of Buck Knives 040 Onset Folding Knifes

  • Drop point, S45VN full flat grind stainless steel blade
  • Cryogenically treated blade for great edge retention
  • Ball bearing technology for smooth opening
  • Secure use with framelock locking mechanism
  • Stonewash finished belt clip, removable
  • Advanced Edge2x blade technology
  • Forever Warranty

Package Contents:

  • Buck Knives 040 Onset Folding Knifes
Last updated 2026-06-24 UTC.