For all V-22 / AICS based 22LR rimfire actions.
Adjusts to fit snugly in the 22LR AICS magwell, with multiple nylon set screws, just back them out until it is as tight as you want.
Two angles are milled into the base of the block, mount the rifle parallel with the vise or at 10 degrees downward so solvent flows to the muzzle end and not the action. Designed to clear bolt raceway for trigger tuning work.
CNC machined from HDPE plastic, impervious to all gun cleaning solvents.