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

Design & Features

• Plan-B Interface: Features external threads and a tapered shoulder to create a tight, concentric seal with Plan-B suppressor adapters, ensuring a secure lock-up and preventing carbon from fouling the threads.

• 360-Degree Porting: The distinctive “pepper pot” radial hole pattern evenly disperses expanding muzzle gases in all directions. This mitigates felt recoil and acts as a sacrificial blast baffle to extend the life of your suppressor.

• Wrench Flats: Integrated hexagonal flats at the base allow for straightforward torquing and installation using a standard wrench.

• Mounting Hardware: The device is accompanied by a heavy-duty lock nut and a beveled ring/crush washer to assist with proper timing and secure fitment to the barrel.

• Smooth Metal Finish: Machined with a smooth, dark protective finish (likely a heat-treated steel with a nitride coating) for maximum durability, heat resistance, and corrosion protection.

• Weight: 2.4oz (223/556,9mm),

• Overall Length: 1.89″

• Material: 4140 Steel Nitride Finish

• Thread Pitch: 1/2×28 TPI (223/556),

• Caliber: 223/5.56,9mm

• Suppressor Mount: Plan B / Atlas

• Torque Spec: 20-30 ft-lbs

• Additional Info: Peel Washer Included

• Muzzle Brakes using .223/5.56 ammunition have been tested and rated for 7.5″ barrels and longer

• Aim7 Plan B Alpha Adapter – 1.125″x28 (SUS303 Stainless Steel)

  The Aim7 Plan B Alpha Adapter provides a precise, durable interface between Alpha-pattern suppressor threads (1.125×28) and Plan B-style muzzle devices. CNC-machined from SUS303 stainless steel and finished in Black Oxide, this adapter is engineered for strength, heat resistance, and repeatable alignment.

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  Specifications

  Feature	Details
  Mount Type	Alpha Thread Mount
  Thread Pitch	1.125 × 28 TPI
  Material	SUS303 Stainless Steel
  Finish	Black Oxide
  Added Length	Approx. 0.648 in
  Weight	Approx. 1.6 oz
  Width	1.29 in
  Height	0.892 in
  Compatibility	Alpha-pattern suppressors & Plan B-style muzzle devices
  Device Compatibility	Short Rearden devices: FHD, Mini, SPB, RPB, R2S

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  Key Features

  • Precision CNC-machined from SUS303 stainless steel

  • Heat-treated for superior strength and durability

  • Compatible with Alpha pattern (1.125×28) suppressor threads

  • Interfaces with Plan B-style muzzle devices for modular setups

  • Black Oxide finish provides corrosion and carbon fouling resistance

  • Compact, low-profile design adds minimal length

  • Engineered for repeatable concentric alignment

  • Easy to install and maintain

  • Fully compatible with Q Cherry Bomb and other Plan B-compatible muzzle devices

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  System Compatibility Examples

  Works with suppressors such as:

  • SilencerCo Omega 9K / 45K

  • SilencerCo Octane Series

  • Rugged Obsidian 9 / 45

  • Griffin Armament Revolution Series

  • Harvester 300

  • Many other Alpha/Omega 9K pattern suppressors

  Why Plan-B?

  The Plan-B and Q Cherry Bomb system uses a precision taper mount to deliver:

  • Strong lockup

  • Increased contact surface area

  • Protection against carbon locking

  • Reduced risk of user installation error

  • Reliable repeatable alignment

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  Important Safety & Warranty Notice

  Some suppressor manufacturers do not warranty their products when used with aftermarket adapters or muzzle devices. Always:

  • Verify bullet stabilization

  • Use an alignment rod to confirm concentricity

  • Ensure correct installation before firing

  Aim7 is not liable for injury, death, or property damage resulting from misuse, improper installation, or incompatible setups.