The VLTOR MUR upper is a high quality AR receiver which has thickened walls to provide greater stability, enhancing accuracy and resulting in a longer service life and greater reliability. This VLTOR AR upper is forged from high strength 7075 T6 aluminum, fully heat treated and cryogenically stress-relieved. It is precision CNC machined and hand finished to its final dimensions. This unit is totally compatible with all mil-spec selective fire components and lower receivers and most commercial semiauto lowers with 0.25″ pivot pins. The VLTOR MUR upper is given a slick, dry lube coating over a mil-spec hard anodized finish which protects the weapon from abrasion and results in smoother operation. A 13 cross-slot MIL-STD 1913 Picatinny rail is cut into the top of the upper. Two versions are available – the MUR-1 upper has a case deflector and the MUR-1a upper a case deflector and forward assist. The MUR upper receiver comes with its forward assist (Model MUR-1A only) and ejection port cover ready fitted.
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