The NcSTAR VTARLWRVB 223/5.56 AR10 Lower Receiver Vice Block is essential for precision and stability during firearm assembly. Engineered from lightweight anodized blue aluminum, this durable vice block adeptly secures any MIL-Spec lower receiver, ensuring safe and effective maintenance. Lightweight anodized blue aluminum construction Compatibility with MIL-Spec lower receivers Removable buffer tube mount ring for precision Includes buffer tube support ring with adjustable thumb screws Pistol grip bolt for enhanced security Elevate your gunsmithing capabilities with this reliable and innovative vice block, now patented in the U.S.