Best Bayonet For AR15 and Mossberg 590a1

If you’re wondering how to attach bayonet to ar-15. In this blog post, we’ll walk you through the process step-by-step so you can get started.

Historically, bayonets have been sharp steel with handles that have been around for decades. We still use them today.

I’m talking today about the best Bayonet you can own today, why it’s the best Bayonet for your AR15, and why it’s the best Bayonet for your shotgun, the 590a1. I created this page as a result of searching for and finding a solution. So here is my perspective to share with you. Let’s get started!

First I’m going to list my top 5 of the greatest bayonets on the market, then I m going to provide my best Bayonet for the AR15, and the 590a1, have a pleasant read!

Best Bayonet- My Top 3 

1. Ontario M9 Bayonet

Our Top Pick
how to attach bayonet to ar-15

Ontario Knife Company, M9 Bayonet and Scabbard


  • Blade Material: Stainless Steel
  • Handle Material: Zinc
  • Blade Length: 7 Inches

The Ontario Knife M9 Bayonet Is A Fixed Blade Bayonet And One Of The Few American Made Bayonets Available Today. The 7″ Plain Edge Blade Is Thick With A .24″ Blade Thickness And A Flat Bevel Grind And An Hrc Of 53-57. A Zinc Phosphate Finish Over The 420 Modified Stainless Steel Is Tough And Corrosion Resistant.

This is by far the best Bayonet, the quality and toughness of this blade are great, Ontario is great in making this strong, tactical, survival blade, the Bayonet comes with 7 inches of stainless steel with a zinc phosphate finish on the plain edge, weights 16 ounces.

Which is the perfect weight for a fixed knife, it has an Alice clip so that you can put it on your gun, it has a wire cutter feature which is pretty practical, and it has a very tough black nylon handle.

The M9 is incredibly tough, with exceptional corrosion resistance and wear resistance (although this does not imply that it is indestructible), it is now being utilized by the army, and it is a perfect match for both the AR15 and the Mossberg 590a1. All in all, Ontario did a fantastic job developing this one.

2. Ontario OKC3S Marine Bayonet

2nd Pick
how to attach bayonet to ar-15

Ontario Knife Co OKC3S Marine Bayonet


  • Material: 53-58 RC hardness
  • Handle Material: Plastic
  • Weight: 1.6 Pounds

The OKC3S Marine Bay features a 8 in. 1095 Carbon steel fixed partially serrated blade with a zinc phosphate coating and a brown modified Kraton handle. Knife has an overall length of 13.25 in. and includes a MOLLEpatible glass filled nylon sheath.

This is a longer version of the M9 bayonet; its overall length is 13.25 inches, and it has an 8-inch plain edge zinc phosphate coating blade and a brown modified Kraton handle. This bayonet was built for the United States Army;

 the blade is constructed from 1095 carbon steel, which has high hardness and good toughness; it is excellent for heavy use; it is very sharp right out of the box; it has an Alice clip so you can attach it to your rifles; however,

3. Smith & Wesson SW3B Submachine Gun

3rd Pick
Fixed Blade Knife

Smith & Wesson SW3B 12.8in S.S. Fixed Blade Knife


  • Material: Blend
  • Handle Material:‎Rubber
  • Weight: 1 Pounds

DIMENSIONS: 12.8 inch (32.6 cm) overall length with a blade length of 7.8 inches (19.7 cm) and a weight of 14.6 ounces

The SW3B from SMITH & WESSON is a bayonet (fixed blade) that has a 7.8-inch blade made of 420J2 stainless steel, which has decent edge retention, high corrosion resistance, and good toughness; the blade is black oxide coated and has a notched spine;

 the handle is made of black nylon fiber with a black rubber inlay for toughness and hand comfort; and let’s not forget about the sheath, which comes with a wire cutter and The one drawback to this knife is that it was manufactured in China.

If it had been produced in the United States of America, I would have purchased it without a second thought; nevertheless, it does need a bayonet adaptor.

Now, here is the list of the greatest bayonets that I have found overall. Now, let’s look at the best bayonets for the AR 15 and the 590a1.

How to Attach Bayonet to ar-15

There are a few different ways to attach a bayonet to an AR-15, depending on the model of bayonet and your specific rifle.

If you have an M7 or M9 bayonet, it will likely come with a scabbard (a protective sheath). To attach the bayonet, first, insert the muzzle of your rifle into the scabbard. Then, with the bayonet handle facing up, insert the bayonet lug on the hilt of the blade into the muzzle brake or compensator holes on your AR-15. Twist the bayonet clockwise until it locks into place.

If you have an AKM-type bayonet (sometimes called a “spike”), there is no scabbard. To attach it, first make sure that the muzzle of your rifle is clean and free of any obstructions. THEN, holding the bayonet by the blade, align the spike with the muzzle of your rifle and push it onto the barrel until it is flush with the front sight post. The locking ring on the hilt of the bayonet should be facing upwards.

Once the bayonet is attached, you can use it for close-quarters combat or as a utility tool. To remove the bayonet, simply reverse the process.

Read also: Best Serrated Pocket Knife

The Finest Bayonet Available for the AR-15

The M9 from Ontario is the ideal bayonet for the AR 15, since it has a flawless fit. The OKC3S is also an excellent bayonet, but for some reason, it has a tendency to move about. Because of this, the M9 is the recommended option.

The Finest Bayonet Available for the 590a1 (The Shot gun)

The 590a1 is one of the most well-known shotguns on the market, and if you’re searching for a bayonet that will work with it, the M9 from Ontario is going to be your best option.


You should always remember to keep your bayonet sharp, clean it, and oil it to prevent future rust on it, and if you need to question anything about knives, feel free to leave your question in the comments section.

 A bayonet is an excellent accessory for your shotgun, and it is very helpful in your hog hunting. Many hunters recommend having it. There I Hope I Help You in Your Decision.

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