Working on an AR upper just got a whole lot easier with the Odin Works AR-15 Upper Receiver Vise Block. It works with all AR-15 uppers, and AR-style .308 uppers as well. Just put the block in the vise, pin the upper onto the block, and you are ready for cleaning, maintenance, installing barrels and forends or any other task. It is machined from 6061 billet aluminum and has quick release pins. The green finish is hard-coat anodized.

Specifications and Features
6061 billet aluminum
Works with both AR-15 and AR-style .308 uppers
Quick release pins
Anodized green finish