Glenfield Hybrid Muzzle Brake Features The Glenfield Hybrid Muzzle Brake is built from alloy steel chosen for its ability to withstand the heat and pressure cycling that comes with repeated .450 Bushmaster firing. The hybrid port design redirects blast and gas to the sides of the muzzle reducing both recoil impulse and muzzle rise so the shooter can stay on target for faster follow-up shots. A black oxide finish protects the steel from corrosion while giving the brake a finish that blends with most factory and aftermarket barrel finishes. This combination of function and finish makes the brake a practical upgrade for hard-recoiling .450 Bushmaster rifles. Installation uses an external jam nut to time the brake s ports correctly relative to the bore ensuring the venting works as designed rather than at a random rotational position. The 11/16x24 thread pitch matches the standard threading found on Glenfield rifles chambered in .450 Bushmaster so the brake installs directly without additional machining. As a genuine Glenfield factory accessory made in the USA it is built to the same quality standards as the rifle itself. For .450 Bushmaster shooters looking to tame recoil and keep the muzzle settled between shots the Glenfield Hybrid Muzzle Brake is a direct-fit solution. Glenfield Hybrid Muzzle Brake Specifications Manufacturer: Glenfield Model: Hybrid Muzzle Brake Type: Muzzle Brake Caliber: .450 BM Color: Black Material: Alloy Steel Finish: Black Oxide Thread Pattern: 11/16x24 Includes: Jam Nut Available At: GrabAGun