Quite a bit of testing went into the updated PMA Barrel Vise. From the metal finishing on the aluminum to maximize grip and minimize marks left on the barrel to the ability to handle barrels from .830" to 1.450" this barrel vise is based on the fantastic original Viper barrel vise, with a few added features we wanted.
Vise is shipped in position to handle barrels 1" - 1.450". To use the vise for barrels under 1" remove the top and rotate it 90 degrees.
PMA Recommends torquing barrel vise nuts to 40 ft-lbs.