The Ruger .223 Rem Radial Port Muzzle Brake, 1/2×28 is a radial port muzzle brake from Ruger for .223 Rem and 5.56 NATO rifles (Ruger part no. 90486). Ruger designed the brake to reduce felt recoil and muzzle movement, which helps keep the sights or optic on target between shots. It is made from alloy steel with a black oxide finish to complement most firearms. The brake is compatible with AR-556 rifles and other .223 Rem or 5.56 NATO firearms with 1/2×28 muzzle threads. It is a practical upgrade for range days, training and any build where recoil control matters.

Key Specifications

• The brake is a radial port design that Ruger says reduces felt recoil and muzzle movement.
• It is made for .223 Rem and 5.56 NATO rifles, matching the cartridge it is meant to manage.
• The thread pattern is 1/2×28, the standard AR-pattern muzzle thread that this brake needs to mount.
• The material is alloy steel, a durable choice for a part that takes muzzle blast.
• The finish is black oxide, which Ruger chose to complement most firearms.
• The brake is 1-3/4 inches long, a compact length that adds little to the muzzle.
• The diameter is .75 inch, so the brake sits close to a standard barrel profile.
• It weighs 1.7 ounces, adding very little weight to the front of the rifle.
• It installs with an 11/16-inch open end wrench or crescent wrench and a torque of 15 to 20 foot-pounds, with no crush washers required.
• It is made in the USA by Swan Manufacturing, as Ruger states on the product page.

Frequently Asked Questions

Which rifles does this muzzle brake fit? Ruger says it is compatible with AR-556 rifles and other .223 Rem or 5.56 NATO firearms with 1/2×28 muzzle threads.

How do I install it? Ruger says it installs with an 11/16-inch open end wrench or crescent wrench. Torque it to 15 to 20 foot-pounds, and no crush washers are required.

What is it made of? It is alloy steel with a black oxide finish, and Ruger states it is made in the USA by Swan Manufacturing.

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