Silencerco 1/2-28 3-Port ARS Muzzle Brake, Black - AC142
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SilencerCo
Overview
The SilencerCo 1/2-28 3-Port ARS Muzzle Brake is designed specifically for 5.56 NATO caliber rifles and features a 1/2x28 thread pitch, making it compatible with a wide range of AR-15 barrels. This muzzle brake effectively reduces recoil and muzzle rise, allowing for quicker follow-up shots and improved accuracy during rapid fire. It is commonly found in carbine gas system builds chambered in 5.56 NATO, enhancing overall shooting performance.
Specifications
Silencerco 1/2-28 3-Port ARS Muzzle Brake, Black - AC142
September 2026 on GunPartPicker
Silencerco 1/2-28 3-Port ARS Muzzle Brake, Black - AC142 was the eighth most added muzzle device on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #11 of the 418 muzzle devices builders have added. Builds with this muzzle device are nearly all chambered in 5.56 NATO, mostly on carbine-length gas (67%, then mid-length 33%), and mostly AR-15 (73%, then AR-10 27%).
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 6 of the 8 retailers we track have it in stock. The best price drifted down from $79.90 to $67.99 over September 2026 without a real sale. Buying today, the lowest price is $79.90 at Brownells, above September's low of $67.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 4 →Builds in the community that include the Silencerco 1/2-28 3-Port ARS Muzzle Brake, Black - AC142
| Build | Parts | Total |
|---|---|---|
 | 24 | $3783.45 |
 | 18 | $1199.28 |
 | 20 | $4182.98 |
 | 9 | $2359.13 |
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