Otter Creek Arms Llc144599719
Otter Creek Arms Ocl-442 Ops Ae Muzzle Brake Raw Heat Treat 5/8X24$81.25
Availability: In Stock
Current Stock: Out of stock
The Otter Creek Arms OTB Muzzle Brake is a one-piece adapter that combines a muzzle device with OPS pattern mounting in raw heat-treated finish. Built from H900 heat-treated 17-4 stainless steel, this 5/8×24 threaded brake allows you to mount compatible OPS 12th model suppressors—including the OCM5 and AEM5—directly to any rifle barrel with 1/2×28 threads, .75" or less outside diameter, and a minimum of 2.05" of exposed barrel measured from the shoulder. It's engineered for shooters who want a dedicated suppressor platform without custom collars or barrel work.
The raw heat-treat finish offers a no-frills, utilitarian look while the integrated muzzle brake design reduces the need for separate components. Otter Creek includes a shim kit in the box—the only approved method for timing the brake to your barrel. This attention to proper installation ensures consistent suppressor alignment and performance. Because it combines function and mounting in one piece, the OTB Muzzle Brake represents a different approach than standalone flash hiders or brakes, making it ideal for serious suppresssor-equipped setups where reliability and precision matter.
This is a precision-engineered adapter, not a typical muzzle brake, so installation requires careful attention to the included timing shims and proper torque practices. Never use a crush washer with this device—doing so will void the warranty. If your rifle runs a 1/2×28 barrel and you're planning a suppressed build around an OPS 12 mount, the OTB Muzzle Brake eliminates guesswork and custom work from the equation.
| Thread Pattern | 5/8×24 (mounts to 1/2×28 barrels) |
| Material | H900 heat-treated 17-4 stainless steel |
| Finish | Raw heat treat |
| Barrel Compatibility | 1/2×28 thread; .75" OD maximum; 2.05" minimum exposed barrel length (measured from shoulder) |
| Suppressor Mount | OPS 12th pattern (OCM5, AEM5, and compatible suppressors) |
| Included Accessories | Shim kit for timing |
The OTB Muzzle Brake accepts OPS 12th model suppressors, including Otter Creek Arms OCM5 and AEM5 units and other compatible suppressors designed for that pattern.
Yes, the OTB Muzzle Brake threads onto any 1/2×28 barrel with an outside diameter of .75" or less and a minimum of 2.05" of exposed barrel length measured from the shoulder. If your barrel falls within those specs, it will fit.
No. Do not use a crush washer with the OTB Muzzle Brake—doing so will void the warranty. Use only the included shim kit for timing, which is the only approved method.
The OTB Muzzle Brake comes with a shim kit for timing the brake to your barrel. This kit is essential for proper installation and alignment.
SKU: 144599718
Availability: In Stock
Current Stock: Out of stock
The Otter Creek Arms OTB Muzzle Brake is a one-piece adapter that combines a muzzle device with OPS pattern mounting in raw heat-treated finish. Built from H900 heat-treated 17-4 stainless steel, this 5/8×24 threaded brake allows you to mount compatible OPS 12th model suppressors—including the OCM5 and AEM5—directly to any rifle barrel with 1/2×28 threads, .75" or less outside diameter, and a minimum of 2.05" of exposed barrel measured from the shoulder. It's engineered for shooters who want a dedicated suppressor platform without custom collars or barrel work.
The raw heat-treat finish offers a no-frills, utilitarian look while the integrated muzzle brake design reduces the need for separate components. Otter Creek includes a shim kit in the box—the only approved method for timing the brake to your barrel. This attention to proper installation ensures consistent suppressor alignment and performance. Because it combines function and mounting in one piece, the OTB Muzzle Brake represents a different approach than standalone flash hiders or brakes, making it ideal for serious suppresssor-equipped setups where reliability and precision matter.
This is a precision-engineered adapter, not a typical muzzle brake, so installation requires careful attention to the included timing shims and proper torque practices. Never use a crush washer with this device—doing so will void the warranty. If your rifle runs a 1/2×28 barrel and you're planning a suppressed build around an OPS 12 mount, the OTB Muzzle Brake eliminates guesswork and custom work from the equation.
| Thread Pattern | 5/8×24 (mounts to 1/2×28 barrels) |
| Material | H900 heat-treated 17-4 stainless steel |
| Finish | Raw heat treat |
| Barrel Compatibility | 1/2×28 thread; .75" OD maximum; 2.05" minimum exposed barrel length (measured from shoulder) |
| Suppressor Mount | OPS 12th pattern (OCM5, AEM5, and compatible suppressors) |
| Included Accessories | Shim kit for timing |
The OTB Muzzle Brake accepts OPS 12th model suppressors, including Otter Creek Arms OCM5 and AEM5 units and other compatible suppressors designed for that pattern.
Yes, the OTB Muzzle Brake threads onto any 1/2×28 barrel with an outside diameter of .75" or less and a minimum of 2.05" of exposed barrel length measured from the shoulder. If your barrel falls within those specs, it will fit.
No. Do not use a crush washer with the OTB Muzzle Brake—doing so will void the warranty. Use only the included shim kit for timing, which is the only approved method.
The OTB Muzzle Brake comes with a shim kit for timing the brake to your barrel. This kit is essential for proper installation and alignment.
SKU: 144599718