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SilencerCo AC142 ASR 5.56 NATO Muzzle Brake – 1/2″‑28 TPI, Black Steel

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The SilencerCo AC142 ASR Muzzle Brake is a 1/2″‑28 threaded brake designed specifically for .223/5.56 NATO rifles, providing excellent recoil reduction and acting as part of the ASR suppressor quick-attach system, built from rugged black steel.

$89.99

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The SilencerCo AC142 ASR Muzzle Brake blends accurate recoil control with suppressor-ready convenience. Engineered for .223 Rem/5.56 NATO platforms with 1/2‑28 threads, this muzzle brake features precision-cast gas vents to minimize muzzle rise while accelerating recovery for rapid follow-up shots.

Its steel construction is heat-treated, then coated in black nitride, ensuring resistance to high heat and corrosion. As part of the ASR (Autoregulatory Suppressor Removal) system, it provides secure engagement and repeatable point-of-impact when paired with compatible ASR suppressors like Omega, Octane, or Harvester. The one-piece design is compact—approximately 2 inches long—and includes a cross-pin groove and detent hole for secure lockup.

Key Features:

  • Recoil- and muzzle-rise reducing vent design

  • ASR-compatible muzzle interface with cross-pin lock

  • Thread pitch: 1/2″‑28 RH

  • Black nitride-coated steel for durability

  • Lightweight, streamlined (approx. 2″ length)

  • Compact ASR mount for fast, tool-less suppressor swaps

  • Preserves zero after suppressor removal/re-attachment

Manufacturer Specifications:

  • Model: AC142

  • Thread Pitch: 1/2″‑28 RH

  • Caliber Compatibility: .223 Rem / 5.56 NATO

  • Material: Heat-treated steel

  • Finish: Black nitride

  • Length: ~2.0″

  • Weight: ~2.8 oz

  • ASR interface: Cross-pin groove / detent

  • Warranty: Lifetime

FAQ:
Q: Is this brake suppressor-ready?
A: Yes—engineered for use with SilencerCo ASR-series suppressors and compatible with Omega, Harvester, Octane, and Freedom models.

Q: Will this fit my AR-15 barrel?
A: Yes, if your barrel has standard 1/2×28 threading.

Q: Will I maintain zero after removing my suppressor?
A: Yes—the precisely-machined ASR groove ensures repeatable alignment and minimal POI shift.

Q: Does it reduce recoil and muzzle climb?
A: Yes—it’s vented to redirect gas and reduce both muzzle rise and felt recoil.

Brought to you by Black Bayou Armory.

UPC

817272010336

Manufacturer

Manufacturer Part Number

AC142

Model

ASR

Thread Pattern

1/2"-28 tpi

Product Type

Muzzle Brake

Caliber/Gauge

.223 REM/5.56 NATO

Length

2.4

Package Height

1.1

Package Width

6.6

Shipping Weight

0.25

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