Aim7 PepperBox Plan- B Muzzle Brake & Alpha Adapter 1/2×28

Aim7 PepperBox Plan-B Muzzle Brake 1/2×28 & Alpha Adapter Combo Kit

The Aim7 PepperBox Plan-B Muzzle Brake & Alpha Adapter Combo delivers a comprehensive, precision-engineered mounting solution for Alpha-pattern modular systems (1.125×28). Combining the rapid, repeatable lockup of a taper-mount interface with 360-degree radial blast dispersion, this pairing provides flat recoil tracking, prevents carbon-locked threads, and shields blast chambers against aggressive gas erosion.

Engineered for .223 / 5.56 NATO and 9mm platforms, this complete package couples a solid 4140 steel radial brake with a high-strength SUS303 stainless steel Alpha adapter, providing rock-solid concentric alignment across standard Alpha/Omega 9K pattern setups.

Key Combo Features

• 360° Radial Gas Dispersion: The signature multi-port “pepper pot” radial architecture vents high-pressure gases symmetrically in all directions to flatten recoil impulse and virtually eliminate muzzle jump.
• Concentric Plan-B Taper Interface: Forward taper creates a gas-tight seal that isolates external threads from fouling, preventing carbon locking and guaranteeing repeatable point-of-impact (POI).
• Alpha Standard Compatibility: Adapter is precision-threaded to 1.125×28 TPI (Alpha pattern), making it directly compatible with popular Alpha-pattern suppressors, blast deflectors, and modular hubs.
• Sacrificial Baffle Protection: The heavy-duty 4140 steel brake serves as an effective sacrificial blast baffle, absorbing harsh propellant jetting before it reaches internal chambers.
• Short-Barrel Approved: Extensively tested and rated for short-barrel platforms down to 7.5″ with .223 / 5.56 ammunition.
• Integrated Wrench Flats: Built-in base flats ensure straightforward torquing and removal using standard armorer tools.

System Specifications

System Compatibility Examples

Trademark Disclaimer: “Plan B” and “Cherry Bomb” are registered trademarks of Q, LLC. “SilencerCo,” “Rugged,” “Griffin Armament,” and “Rearden” are trademarks of their respective owners. The AIM7 PepperBox Brake & Alpha Adapter are aftermarket components manufactured independently by AIM7 and designed solely for cross-compatibility with industry-standard mounting interfaces. AIM7 is not affiliated with, endorsed by, or sponsored by any of these manufacturers.

Fitment, Safety & Legal Disclosures

• Classification Notice: THIS ITEM IS NOT A SILENCER, SUPPRESSOR, OR NFA COMPONENT. It is strictly an open, unbaffled muzzle brake and mounting adapter intended exclusively for recoil reduction and quick-detach modular mounting. It contains no acoustic dampening media and does not alter, reduce, or diminish the sound report of a firearm.
• Concentricity & Alignment Check: Some manufacturers do not warranty products used with aftermarket adapters. Always verify projectile stabilization and confirm bore concentricity with an armorer’s alignment rod before firing. Ensure firearm is completely unloaded and pointed in a safe direction prior to installation.
• Legal & Export Compliance: Buyer assumes full responsibility for compliance with all applicable federal, state, and local laws. Strictly subject to U.S. export regulations (ITAR/EAR)—U.S. sales only, no export.
• Proposition 65 Warning: This product may contain trace chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.