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The AR-15 Upper Receiver Assembly is the engine of the AR-15 platform. Like all engines, the upper receiver assembly needs to be maintained. Maintaining the upper receiver can include cleaning, lubricating, and when necessary replacing the essential components when they are worn or have failed.
When repairing anything it is critical to have the proper tools for the job and any work on the AR-15 upper receiver will require this vice block. Most tasks involving the upper receiver assembly require you to use significant torque and there is no better way to achieve this than a solid mount for your upper receiver. With the use of this vice block tasks such as installing a new barrel nut become routine and easy.