Expo Arms/FCD Extended Single Chamber Muzzle Brake - Dead Air Keymo Mount - 1/2x28
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Expo Arms
Overview
The Expo Arms/FCD Extended Single Chamber Muzzle Brake is designed to reduce recoil and muzzle rise, enhancing accuracy during rapid fire. With a thread pitch of 1/2x28, this steel muzzle brake seamlessly attaches to a variety of barrels while its nitride finish adds durability and corrosion resistance. Builders commonly integrate this muzzle device in mid-length gas system builds chambered in .223 Wylde, making it a solid choice for those looking to improve performance on their AR-15 platforms.
Specifications
Expo Arms/FCD Extended Single Chamber Muzzle Brake - Dead Air Keymo Mount - 1/2x28
Build history on GunPartPicker
Builders on GunPartPicker first added the Expo Arms/FCD Extended Single Chamber Muzzle Brake - Dead Air Keymo Mount - 1/2x28 to a build in February 2026.
It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $110 at Primary Arms for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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