NcSTAR Storage
Can be used in several ways for many different maintenance tasks
Use just the lower half of the block by attaching it quickly to the AR10 upper receiver with the two provided receiver pins; Allows you to clamp the AR10 upper receiver to a vise for maintenance work
Bolting the two halves of the upper receiver block fully supports the AR10 upper receiver to prevent damage from torque twisting forces when installing or removing barrels from the receiver
