SilencerCo 30 Cal Muzzle Brake - AC591
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SilencerCo
Overview
The SilencerCo 30 Cal Muzzle Brake is designed specifically for 5.56 NATO caliber rifles, offering effective recoil reduction and enhanced accuracy during rapid fire. With a 5/8x24 thread pitch, this steel muzzle device easily attaches to compatible barrels, ensuring a secure fit and reliable performance. Builders often incorporate this muzzle brake in carbine gas system builds chambered in .308 Win, making it a practical choice for those looking to improve their shooting experience.
Specifications
August 2026 on GunPartPicker
SilencerCo 30 Cal Muzzle Brake - AC591 ranked #11 of the 143 muzzle devices builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since January 2026. All time, it is the seventh most added muzzle device on the site. Builds with this muzzle device are mostly chambered in 5.56 NATO (67%, then 300 Blackout 33%), split between mid-length (40%) and pistol-length (40%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 8 of the 9 retailers we track have it in stock. It dipped to $66.19 at GritR Sports for a stretch in August 2026, under its usual $69.99 to $79.90, so sales do come around. Buying today, the lowest price is $64.99 at GritR Sports, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 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
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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