USGI M9 Bayonet

The M9 Bayonet from OKC is a USGI issued bayonet for the M16 rifle. Officially adopted in 1986, the M9 is a great improvement on the earlier M7 bayonet. With production numbers approaching 500,000 the M9 bayonet is a true battle tested bayonet that can double as a fighting knife.

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Ontario Knife Company


  1. USGI M9 Bayonet
  2. Sheath Doubles as a Wire Cutter
  3. Black Oxide Non Reflective Finish
  4. Quick Detach Clips on Sheath
  5. Serrated Spine on Blade
  6. Official Bayonet of the US Military
  7. Blade Length: 7 Inches
  8. Overall Length: 12.25 Inches
  9. NSN#: 1095-01-227-1739
  10. UPC: 071721062202
More Information
Overall Rating
It fits, it’s sharp, it’s green
Review by Keepshooting Customer
I got a used Ontario M9 from KS (I didn’t know that when I ordered it). The package was sealed in Amazon packaging, as new, the knife is clean and straight, looks unused. No doubt I will get years of use out of it. As others have said, for the field it doesn’t have all the “cool knife fight feature” extras, but is sharp and does the job it’s designed to do. A true workhorse in an M9 knife, I’m satisfied with the knife. It’s green.
Overall Rating
As you would expect
Review by Keepshooting Customer
Well made as is usual from Ontario knife company
Overall Rating
Exactly as described
Review by Keepshooting Customer
My brother has a collection of various weapons and this is his newest purchase. As expected this knife looks, feels and wears like a high quality product. It fits his collection well and seems to match the U.S. Army looks. The sheath appears to have great materials and construction and offers the security needed to retain the knife during active use.
Overall Rating
Buy it!!!!! You won't be disappointed!!!!!
Review by Keepshooting Customer
It's a BEAST!!! Sheath has good velcro. Heavy. Very high quality steel. Nice hardcase
Overall Rating
Made In The U.S.A. Quality!!! Highly Recommend!!
Review by Keepshooting Customer
This thing is made to be abused! Exactly like the M9 I carried in the Marines! Perfect edge retention on a bayonet. Highly Recommend!!!
Overall Rating
Great addition to a weapon.
Review by Keepshooting Customer
Exactly what I wanted. Nice finish.
Overall Rating
Good Knife For the price
Review by Keepshooting Customer
The edge wasn't that great. A good smith could probably fix that. But the knife itself is pretty good. 1095 is the better steel. Still good for light to medium work. This was the only place that had it for the right price. You'll never use it at Marine Corps Quantico
Overall Rating
Beautiful, Heavy Bayonet, Worth the Money.
Review by Keepshooting Customer
Great tactical bayonet. Nice weight, fit, finish, the whole thing.
Overall Rating
great knife
Review by Keepshooting Customer
Great heavy blade. Tested on trees, cars, and other stuff. Sturdy and well built.
Overall Rating
Perfect, except for the edges
Review by Keepshooting Customer
Aside from minor details that some are likely already aware of, this is a well-built, combat-ready M9. I did not know until after purchase that these bays do not accept GI m3 or newer bayonet sheaths, so you'll have to get a leather model or something else appropriate for this particular bayonet. The fit and finish are top-notch, and you will find very few if any imperfections on the steel itself. For some, though, you may find it unsightly that the sheath has holes in the molded portion of the grip, the sheath, and around the pommel and base. These do not effect the function of the sheath, but are likely a cosmetic issue for some individuals. Overall, a great addition to the personal weapon of those lucky enough to still have them.
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