Name: Strike Industries Mini King Compensator
Brand: Strike Industries
SKU: 3Q-BMB-STRIN6
Price: 49.95 USD
Availability: InStock
Rating: 4.5 (24 reviews)

Strike Industries Mini KingComp Muzzle Brake, 9mm, Black SI-MK9-Comp

Strike Industries Mini KingComp Muzzle Brake, 9mm, Black, 708747545586

Strike Industries Mini KingComp for 556, Black, One Size, 793811763560

Strike Industries Mini KingComp Muzzle Brake, 9mm, Black SI-MK9-Comp

Strike Industries Mini KingComp Muzzle Brake, 9mm, Black, 708747545586

Strike Industries Mini King Compensator, 9mm, 1/2x28, Black, One Size, SI-MK9-COMP

Strike Industries Mini KingComp for 556, Black, One Size, 793811763560

Strike Industries Mini King Compensator, .556, 1/2x28, Black, One Size, SI-MK-556

Strike Industries Mini KingComp for 556, Black, One Size, 793811763560

Government Export Restriction

This item may be regulated for export by the U.S. Department of State or the U.S. Department of Commerce. Please see our Export Policy prior to placing your order.

Government Restriction

By adding to cart, I understand and agree to the Domestic Restricted Product Policy and certify that I will comply with applicable federal, state and local laws and regulations.

Product Videos

Strike Industries Muzzles Devices Oppressor/Oppressor U Fitment Test 03:30

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Questions & Answers

Will this work with 300blk? Expert Answer

For the .300BLK you would have to use the 9mm version, not the 5.56 version.

by Tom B, Gear Expert, October 11, 2021

See 1 More Answer

Is it compatible with surefire warden? And is 223 one is good for both 556 and 223? AI Answer

This muzzle device is not compatible with the Surefire Warden QD system, since that mount only attaches to Surefire's own muzzle devices; Strike Industries pairs the Mini King Comp only with their own SI Oppressor. The .223/5.56 version of the Mini King Comp is designed to work with both .223 Remington and 5.56x45mm NATO chamberings.

by OpticsPlanet AI, September 23, 2026

View All Q&A You Have a Question? Ask!

Customer Reviews

Helpful Positive Review

Great compensator by John C., May 17, 2020

It’s a great compensator. I bought this model specifically to work with the Strike Industries Oppressor. The compensator redirects the gasses nicely. Easy instillation and well built. Strike Industries makes good quality products.

8/8 found this helpful

Helpful Positive Review

Mini King Comp by Doug, Verified Owner, May 28, 2026

Second only to the real king, CHRIST! I love the look so much I bought 2.

2/3 found this helpful

Helpful Positive Review

Quality Compensator but does NOT fit Brigade BM9 Threads! by Harvey M1, Verified Owner, November 14, 2021

This beauty is pure quality but do not buy this if you're wanting to put this on your Brigade AR9 (BM9) because it won't fit, it likely fits other AR9 models but doesn't fit the BM9 unfortunately. I will keep this though because the quality is phenom...
Read More...

2/5 found this helpful

Helpful Positive Review

phenomenal break by Ed Flo, Verified Owner, May 12, 2021

I have this and the large sized break on a 9mm pcc and even a handgun. This works marvelously for muzzle rise, I even have the oppressor installed in the handgun set up and it definitely makes a huge difference. This is a must buy while you can

3/3 found this helpful

Helpful Positive Review

strike industries mini king comp by Jj, February 24, 2021

Very nice pcc mini king comp. matte black finish matches very well with my pcc. Well priced and very quick delivery . It is hard to find a good muzzle break. Optics planet has a good variety and this muzzle break is my favorite

4/4 found this helpful

Helpful Negative Review

difficult install by KingRat, February 5, 2025

This should be shipped either with a selection of shims, or a locking nut. The supplied crush washer is really pointless. I would have had to turn an additional almost 3/4 of a turn after initial contact with the crush washer. I don't believe it had...
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3/5 found this helpful

Read All 24 Reviews