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Breek Arms 2BO-S Short Single Port Muzzle Brake

Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047
Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048
Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050
Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047
Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048
Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050
Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047
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Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047
Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048
2 of 6 images
Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048
Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050
3 of 6 images
Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050
Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047
4 of 6 images
Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047
Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048
5 of 6 images
Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048
Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050
6 of 6 images
Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050

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Questions & Answers
The description says the outside thread is 13/16 TPI. Is that 13/16x16 or 13/16x3/4? Manufacturer Answer

The outside threads are 13/16" x 16 TPI

by Breek Arms, Manufacturer, February 12, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Small yet effective by Tyler Knapp, Verified Owner, April 3, 2025
Just finished my first rifle build. Installed standard A2 birdcage for the first initial rounds through…exactly as expected. Installed muzzle brake and sent more rounds down range and WOW!!!! Night and day difference! This is installed on a 16” w/ mi...
Read More...
1/1 found this helpful
Helpful Negative Review
Does what it claims, but… by Hoodie, Verified Owner, December 23, 2023
The muzzle brake does ok in terms of reducing recoil, but does nothing for muzzle rise. It’s well made, coating is nice and not as large as I thought it would. Good for a short build. Overall the muzzle rise makes quick follow up shots harder. So bu...
Read More...
1/5 found this helpful
Most Recent Reviews
My preference in brakes and blast forwarders. by Buck Stalker, Verified Owner, August 15, 2025
But a couple blast shields and put these on all of your threaded barrels. They work great.
Most Recent Reviews
Small brake by Cesspool, Verified Owner, March 22, 2025
Nice little brake light great finish, fast shipping
0/1 found this helpful
Read All 4 Reviews

Product Discontinued by Manufacturer

Breek Arms 2BO-S Short Single Port Muzzle Brake has been discontinued by Breek Arms and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Weapon Accessories, Gun Parts, Muzzle Devices, Muzzle Brakes & Compensators yourself to try and find the perfect replacement for you!

Product Info for Breek Arms 2BO-S Short Single Port Muzzle Brake

The 2BO-S Single Port Muzzle brake was designed to reduce recoil and muzzle rise and keep your rifle footprint short. The recoil reduction allows the shooter to stay on target and take follow up shots quickly. This is important when speed and accuracy make the difference such as in competitive shooting or self defense situations.image

The brake is machined out of 4140 steel, heat treated for hardness, and nitride offering exceptional strength and durability. The 2BO-S has large 90 degree ports to mitigate recoil and muzzle rise countering the force generated through firing. This gives less blowback resulting in higher overall shooter comfort. It features a sleek design that integrates seamlessly with any system, maintaining a clean appearance that looks great on any firearm.

Features of Breek Arms 2BO-S Short Single Port Muzzle Brake

  • Short profile works great for Pistol Caliber Carbines
  • Design: 2BOS Single Port Short Muzzle Brake
  • Outside Thread: 13/16 TPI
  • Material: 4140 Nitrided
  • Comes with 1 Crush Washer
  • Overall length: 1.64 Inches
  • Weight: 2.1 (223/556), 1.7 oz (30cal), 2.1 oz (9mm)

Package Contents:

  • Breek Arms 2BO-S Short Single Port Muzzle Brake
  • Crush Washer

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Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
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MTM P50SS9M24 Side-Slide Ammo Box Pistol 9mm, 30 Luger, 32 S&W, 380 ACP, 9mm Makarov, P50SS9M24
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List: $3.82
$3.79
MTM J-20 Slip-Top Boxes .17/.223/.222 Magnum, Clear Green, J-20-XS-16
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(1)
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MTM Ammo Box 100 Round Flip-Top 223 204 Ruger 6x47, smk/clear, small RS-100-41
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MTM Cast Bullet Boxes - Sold In 2-Pack CAST-1-16
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List: $5.64
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Berrys 79462 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Clear Lid W/Black Bottom
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List: $6.49 (Save 51%)
$3.19
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MTM P50 Fliptop Box Handgun .380-9mm, Clear Green, P50-9M-16
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MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
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MTM 9mm Ammo Can 1000 Round w/ 10 each P-100-9s, Dark Earth ACC9
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MTM Ammo Box 50 Round Flip-Top 243 308 Win 220 Swift, Clear Blue RM-50-24
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Ammunition

1–15 / 15
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Freedom Munitions HUSH Subsonic 9mm Luger 147 Grain Round Nose Brass Pistol Ammunition
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(2)
List: $24.19 (Save 17%)
$19.99
$0.40/Round
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PMC Bronze .223 Remington 55 Grain FMJ Boat Tail Ammunition
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(47)
List: $11.99 (Save $1.00)
$10.99
$0.55/Round
On Sale
Fiocchi 9mm Luger 0 Grain Brass Blank Ammunition
Fiocchi 9mm Luger 0 Grain Brass Blank Ammunition
List: $42.99 (Save 31%)
$29.49
$0.59/Round
Umarex - 9mm PAK, 50 qty 2252753
Umarex - 9mm PAK, 50 qty 2252753
List: $27.99 (Save $1.00)
$26.99
$0.54/Round
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Hornady Critical Defense 9 mm Luger 115 Grain Flex Tip eXpanding Centerfire Pistol Ammunition
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(44)
List: $40.00 (Save 29%)
$28.49
$1.14/Round
On Sale
Hornady Subsonic 9 mm Luger 147 Grain FlexLock Centerfire Pistol Ammunition
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(8)
List: $37.72 (Save 26%)
$27.89
$1.12/Round
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Hornady BLACK .223 Remington 75 Grain Boat-Tail Hollow Point Match Centerfire Rifle Ammunition
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(6)
List: $27.99 (Save 18%)
$22.99
$1.15/Round
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Hornady Critical Defense .223 Remington 55 Grain Flex Tip eXpanding Centerfire Rifle Ammunition
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(10)
List: $40.57 (Save 27%)
$29.79
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Norma Range Training FMJ 9mm Luger 124 Grain Full Metal Jacket Brass Cased Centerfire Pistol Ammunition
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(52)
List: $24.99 (Save 30%)
$17.49
$0.35/Round
PPU PPB9L Blank Ammo9mm Luger 50 Bx/ 20 Cs
PPU PPB9L Blank Ammo9mm Luger 50 Bx/ 20 Cs
List: $37.49 (Save 40%)
$22.49
$0.45/Round
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Magtech 9mm Luger 115 Grain Full Metal Jacket (FMJ) Brass Cased Pistol Ammunition
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(66)
List: $17.63 (Save $1.14)
$16.49
$0.33/Round
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Sellier & Bellot 9mm Luger 124 Grain Full Metal Jacket Brass Cased Pistol Ammunition
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(5)
List: $17.63 (Save $1.14)
$16.49
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Freedom Munitions HUSH Subsonic 9mm Luger 165 Grain Round Nose Brass Pistol Ammunition
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(2)
List: $25.59 (Save 12%)
$22.49
$0.45/Round
PMC Ammunition PMC Bronze 9mm Luger 147 Grain Full Metal Jacket Brass Cased Pistol Ammunition
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(1)
List: $21.99 (Save 14%)
$18.99
$0.38/Round
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Hornady Frontier .223 Remington 68 Grain Boat-Tail Hollow Point Centerfire Rifle Ammunition
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(11)
List: $21.99 (Save 25%)
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Breek Arms 2BO-S Short Single Port Muzzle Brake Unavailable & Discontinued Models

List of Unorderable Models

  • Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047 , MPN: BRK4047 , UPC: 812296031039 , Code: 4TY-BMB-B2BOS-BRK4047
  • Breek Arms 2BO-S Short Single Port Muzzle Brake, .30 Caliber, 5/8x24, Black, BRK4048 , MPN: BRK4048 , UPC: 812296031046 , Code: 4TY-BMB-B2BOS-BRK4048
  • Breek Arms 2BO-S Short Single Port Muzzle Brake, 9mm, 1/2x28, Black, BRK4050 , MPN: BRK4050 , UPC: 812296031053 , Code: 4TY-BMB-B2BOS-BRK4050
  • USED Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047, EDEMO1, Used, Condition Like New, Inspect and Rebox , MPN: BRK4047-EDEMO1 , Code: 4TY-BMB-B2BOS-BRK4047-EDEMO-RE-A
  • USED, Breek Arms 2BO-S Short Single Port Muzzle Brake, 223/556, 1/2x28, Black, BRK4047 , MPN: BRK4047-EDEMO , Code: 4TY-BMB-B2BOS-BRK4047-EDEMO-RE-B
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Last updated 2026-09-08 UTC.