Comstock Armory MBM 1/2x28 Recessed Micro Brake - Plan-B Compatible

Comstock Armory MBM 1/2x28 Recessed Micro Brake - Plan-B Compatible

The Recessed Micro Brake (1/2‑28, 5.56 bore) delivers exceptional recoil reduction, superior suppressor compatibility, and rugged durability—all in a compact, lightweight package. Precision‑machined from high‑strength 17‑4 PH stainless steel and finished in a tough black nitride coating, this micro brake is built to withstand extreme use while maintaining a clean, reliable interface with your suppressor system.

Its rotationally symmetric design eliminates the need for timing or shims, making installation fast and frustration‑free. The recessed profile minimizes intrusion into the suppressor, ensuring proper fitment even with recessed‑style adapters. Compatible with popular .900″‑24 Plan‑B‑type adapters such as the Comstock LPA, Q Plan‑B, and Rearden Atlas, this brake offers smooth, secure suppressor attachment and removal while acting as a sacrificial baffle to significantly reduce blast baffle wear.

Plan‑B Adapter Compatibility
Works with common .900″‑24 adapters including Comstock LPA, Q Plan‑B, and Rearden Atlas for seamless suppressor mounting.

Recoil‑Reducing Micro Brake
Effectively cuts recoil while maintaining a compact footprint for minimal added length.

Sacrificial Baffle Protection
Reduces blast baffle wear inside the suppressor, extending overall suppressor life.

17‑4 PH Stainless Steel
High‑strength material engineered for durability under heat and repeated firing.

Black Nitride Finish
Provides corrosion resistance and a smooth, long‑lasting surface.

No Timing Required
Rotationally symmetric design eliminates the need for shims or clocking.

Minimal Suppressor Intrusion
Recessed geometry ensures proper fitment with recessed‑style adapters.

Easy Installation
13/16" wrench flats allow quick, secure mounting and removal.

Specifications

• Thread Pitch: 1/2‑28
• Bore Size: 5.56 / .223
• Adapter Compatibility: .900″‑24 Plan‑B‑type (Comstock LPA, Q Plan‑B, Rearden Atlas)
• Material: 17‑4 PH stainless steel
• Finish: Black nitride
• Overall Length: 1.25″
• Added Length: 0.42″
• Weight: 1.5 oz
• Wrench Flats: 13/16"
• Barrel Diameter Compatibility: Up to .750"
• Design: Rotationally symmetric; no timing required
• Use Case: Suitable for bullets up to .223 / 5.56 mm