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.

Out of stock

SKU N6220

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American Owned and Operated


20+ Years In Business

Returns Accepted

Ships from Pennsylvania


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

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Customer Reviews

Five Stars
Review by Daquana V.
Verified Buyer
Five Stars
Review by Towanda Z.
Verified Buyer
Perfect for hunting. Husband loves it
Five Stars
Review by Stormi C.
Verified Buyer
Ontario 490 M9 Bayonet System (Green) a Best Buy!
Review by Chastin M.
Verified Buyer
This is an excellent example of the fine tools that Ontario makes. I bought this for my AR15, civilian model, and also bought the bayonet attachment to fit on my AR15. Otherwise the bayonet will be a loose fit. Put a modest edge on it using the Spyderco Tri-angle Shapemaker. I have several other Ontario products, and they all perform excellently. You will not be disappointed.
I'm glad I didn't go with a cheaper knockoff.
Review by Carmesha K.
Verified Buyer
I bought this with the knowledge that Ontario is the top knife maker for military bayonets these days because I believe everything I read on the internet! Seriously, I was pleasantly satisfied with this purchase. The knife and sheath were well constructed, and it met all my expectations. If the apocalypse ever hits, I can mount this to my AR or my shotgun. I'm thinking shotgun will be my first choice. I'm glad I didn't go with a cheaper knockoff.
Five Stars
Review by Garion S.
Verified Buyer
excellent, high quality, great for a bugout or camping knife
M9 Bayonet system
Review by Chelse H.
Verified Buyer
Excellent product all round. Solid and easy to grip. Purchased for my collection.
Love the knife
Review by Chariti Y.
Verified Buyer
Love the knife. The black finish isn't exceptionally durable, but i didn't expect it to be. It is a tool and a utility knife and it fits my needs in this role perfectly. The blade is thick and strong and I love the features. All around solid construction. Sheath is solid as well. "Oh, would that fit on your AR-15?" Yes, friend. Yes it would.
Good quality.
Review by Antoinio O.
Verified Buyer
Solid, sturdy. I bought this as a gift for someone else. No complaints. Ontario never ceases to impress me with their quality.
Four Stars
Review by Leslie J.
Verified Buyer
Very nice looking knife. Fit and finish is great. Feels like its well made.
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