Ontario GI OKC3S USMC Marine Bayonet

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Ontario OKC3S USMC Marine Bayonet
Newest issue Marine Corps multi-purpose combat bayonet for the M-16. Replaces the M9. Blade is made from .200" thick proprietary carbon steel. 53-58 Rc. hardness. Phosphate non-reflective finish. Grooved Dynaflex ergonomically designed handle reduces hand fatigue. Scabbard has fitted internal stainless steel spring friction device at throat to secure bayonet. Ceramic-coated aluminum honing rod is located on the back of scabbard. Equipped with two load bearing attaching straps with cross straps which allows variation of placement on the load bearing equipment. Made in USA by Ontario.

OKC3S USMCBayonet 6504
This knife is used/issued by
United States Marine Corps
Features include:
.200" thick proprietary carbon steel
13.25" overall length - 8" blade length
Hardness Rc 53-58
1.75 mission serration
Zinc phosphate non- reflective finish
Dynaflex®handle ergonomically grooved to reduce hand fatigue
Manufactured with a low noise signature polyester elastomer
Fitted internal stainless steel spring friction to secure bayonet
• Ceramic coated aluminum honing rod located on back of scabbard
• Equipped with two load bearing attaching straps with cross straps
• Optional OKC3S compatible leg straps available


National Stock Number (NSN) 1095-01-506-3424
Edge Type Combo
Lock Type Fixed
Deployment Mechanism -
Pocket Clip Configurations -
Hardness 53-58 HRC
Overall Length 13.25 in (33.65 cm)
Closed Length -
Weight 14.0 oz (0.40 kg)
Blade Length 8 in (20 cm)
Blade Material 1095 Carbon Steel
Blade Grind Flat
Blade Angle  
Blade Thickness 0.2 in (0.5 cm)
Blade Color Black
Blade Finish Zinc Phosphate
Blade Stamp Combat / OKC3S Ontario US
Handle Color Brown
Handle Material Modified Kraton
Handle Thickness 1 in (2.5 cm)
Sheath Type MOLLE Compatible
Sheath Color Tan
Sheath Material Glass Filled Nylon
Packaging Type Plastic Bag
Packaged Dimensions 14.75 x 3 in x 2 in (37 cm x 8 cm x 2 cm)
Shipping Weight  
Release Date -
Country of Origin United States of America
See KA3S for compatible bayonet leg strap.