Otter Creek Labs
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The OTB Muzzle Brake works the same as the standard OTB mount, only with a built in muzzle device, Made from H900 heat treated 17-4 steel this one piece adapter will allow you to mount your OPS 12th model, OCM5 or AEM5 to ANY barrel with 1/228 threads that is .75 or less OD and a minimum of 2.05 of exposed barrel MEASURED FROM THE SHOULDER.
| Series: | Muzzle Brake |
| Color: | Black Nitride |
| Model: | OTB |
| Material: | H900 heat treated 17-4 steel |
| Thread Pattern: | 5/8"x24 |