Vltor Modular Upper Receiver with Bolt Assist and Shell Deflector Flat Dark Earth

Vltor Modular Upper Receiver with Bolt Assist and Shell Deflector Flat Dark Earth. The MUR was developed to give the customer a Mil-Spec correct upper receiver with a thicker wall making the MUR upper receiver a stronger platform. This more rigid upper receiver will increase accuracy and reliability while extending the life of the interfacing components. The MUR-1A model comes equipped with a shell deflector and forward assist. The MUR-1S comes with a one piece machined shell deflector unit whic