One piece Over The Barrel (OTB) adapter for ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel this one piece adapter will allow you to mount your silencer to any barrel with 1/2×28 threads that is .75 OD or less with a minimum of 2.95-3 inches of exposed barrel. Made with integrated wrench flats in the rear for easy installation or removal with any adjustable crescent wrench.
This adapter will work on 11.5 inch AR15 barrels when a low profile gas block is being used, will not work with a front sight gas block on 11.5 inch barrel.
Mounting requirements for OTB adapter
- 1/2×28 barrel threads
- OD of 0.75” or less
- 2.95” of exposed barrel
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