The Liberty Precision Machine Baby Bell Muzzle Brake in black stainless steel (brand part no. LPM-2011) is threaded 1/2×28 and machined from 17-4 PH stainless steel that’s heat-treated to the H900 condition for durability under repeated firing. Liberty Precision Machine cuts every critical alignment feature in one setup, and the brake’s 360-degree port orientation means it doesn’t need shims to time correctly during installation. Bored to .395 inches, it’s sized for 9mm or smaller projectiles, and a 13/16-inch rear hex makes installation and removal straightforward with a standard wrench.

Key Specifications

• Threaded 1/2×28, the standard pitch for most 5.56/.223 and 9mm-pattern barrels.
• Bored to .395 inches, sized for 9mm or smaller projectiles.
• Machined from 17-4 PH stainless steel, heat-treated to the H900 condition.
• Uses 360-degree port orientation, so no shims are needed for correct timing.
• Features a 13/16 inch rear hex for easy installation and removal.
• Weighs approximately 1.3 to 1.6 ounces at a compact 1.1 inch overall length.

Frequently Asked Questions

Do I need shims to install this brake? No, the 360-degree port orientation is designed to time correctly without shims.

What projectile sizes is this brake bored for? It’s bored to .395 inches, suited to 9mm or smaller projectiles.

Buy the Liberty Precision Machine Baby Bell Muzzle Brake

Shooters who want a compact, shim-free muzzle brake machined to tight tolerances will get exactly that with the Baby Bell. Order it through our Lubbock, Texas gun shop and browse more gun accessories and parts from Liberty Precision Machine and other trusted brands.