Birchwood Casey AR-15 Upper Receiver Vise Block

Birchwood Casey AR-15 Upper Receiver Vise Block – Allows user to install and torque down the barrel to the receiver. Installs to upper receiver on standard AR-15 or equivalent rifles Clamps in any vise, allowing easy access for cleaning/assembly CNC construction for precise fitment Soft jaw design will not mar the receiver Includes snap pins for secure engagement to the receiver