Description
Bushmaster went back to the drawing board with the MUTA II BM556, and the result is a real upgrade over the original MUTA. The body is 3D printed from Inconel 625, a nickel superalloy that handles the kind of heat a 5.56 can builds up during a long range session without breaking a sweat. Compared to the first generation, this one is shorter, lighter, and quieter, landing at just 5.65 inches long and 12.25 ounces. That makes it the most compact dedicated 5.56 suppressor Bushmaster has ever built, and you'll feel the difference the moment you shoulder your rifle.
What the MUTA II BM556 Brings to Your Rifle
The numbers back it up. Bushmaster reports the MUTA II cuts the sound signature of 5.56 NATO and .223 Rem loads by 14 percent at the left ear, 15.9 percent at the right ear, and 15.4 percent at the muzzle. The custom baffle design also knocks down felt recoil and flash, so you get a smoother, cleaner shooting experience across the board. Concentricity is machined to tight tolerances, which translates to minimal point of impact shift when you spin the can on and off. A rugged Cerakote finish over the printed Inconel body keeps the whole package looking good after plenty of abuse, and the design sheds heat efficiently during high volume strings.
Direct Thread Simplicity, Full Auto Toughness
Mounting is about as simple as it gets. The MUTA II uses a 1/2×28 direct thread attachment that fits standard AR-15 muzzles with no barrel length restrictions and no modifications needed to your rifle or its gas system. It's full auto rated, so semi-auto duty is a walk in the park for this thing.
Cleaning the Bushmaster MUTA II Is Refreshingly Easy
Unlike a lot of sealed rifle cans, the MUTA II is fully user serviceable. The threaded front cap comes off and the baffle stack pulls out, so you can scrub the internals and keep performance consistent for the long haul. For anyone running a 5.56 build who wants a compact, tough, low maintenance suppressor, this one checks all the right boxes.
Key Specifications
- Manufacturer: Bushmaster
- Manufacturer Part Number: SMU200155600BLKFB
- UPC: 604206206060
- Caliber: .223 Rem / 5.56 NATO
- Thread Pattern: 1/2×28
- Length: 5.65 in
- Weight: 12.25 oz
- Body Diameter: 1.675 in (1.815 in at flare)
- Material: 3D Printed Inconel 625
- Finish: Black Cerakote
- Mounting: Direct Thread
- Full Auto Rated: Yes
- Barrel Length Restriction: None
- User Serviceable: Yes, threaded front cap with removable baffles
What’s Included
- Bushmaster MUTA II BM556 suppressor
Frequently Asked Questions
How is the MUTA II BM556 different from the original MUTA?
The MUTA II is shorter, lighter, and quieter than the first generation. Bushmaster moved to a 3D printed Inconel 625 body, which brought the can down to 5.65 inches and 12.25 ounces, making it their most compact dedicated 5.56 suppressor to date. It also sheds heat more efficiently during longer shooting sessions.
Can I clean the Bushmaster MUTA II myself?
Yes, and that's one of its best features. The front cap threads off and the baffle stack is removable, so you can pull it apart, scrub the internals, and reassemble it at home. That keeps performance consistent over thousands of rounds without sending it back to the factory.
Will the MUTA II BM556 work on my AR-15?
If your barrel has standard 1/2×28 muzzle threads, you're set. It's a direct thread design with no barrel length restrictions, and it requires no changes to your rifle's gas system or platform. Just thread it on and go shoot.
Is the MUTA II full auto rated?
It is. The 3D printed Inconel 625 construction handles sustained fire and the extreme heat that comes with it, so this can is rated for full auto use. For most semi-auto range days, that means you have a huge margin of durability built in.



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