NcSTAR AR10 Upper Receiver Block

Bolting the two halves of the NcSTAR AR10 Upper Receiver Block fully supports the upper receiver to prevent damage from torque twisting forces when installing or removing barrels from the receiver. The upper half of the block inserts into the AR10 receiver just like a bolt carrier group. The bottom half of the block can be bolted together with the upper block half with the provided steel bolts. This fully supports the inside and the bottom of the AR10 receiver and it also leaves the receiver optics rail open for mounting accessories and optics. The AR10 upper receiver block also has a hole through the length of the block to act as a bore brush guide for cleaning out the bore of the barrel. It is constructed with blue anodized Aluminum.

• 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
• Upper half of the block inserts into the AR10 receiver just like a bolt carrier group; Bottom half of the block can be bolted together with the upper half with the provided steel bolts
• Fully supports the inside and the bottom of the receiver and it also leaves the receiver optics rail open for mounting accessories and optics
• Hole through the length of the block to act as a bore brush guide for cleaning out the bore of the barrel
• Constructed with blue anodized Aluminum.