The BANISH 45 multi-caliber and modular suppressor can be used on various host firearms with different barrel threads by quickly and easily swapping out the threaded piston at the rear of the silencer. BANISH Suppressors manufactures pistons to match the barrel threads of many popular factory-threaded pistol barrels. BANISH pistons feature heat-treated steel construction and engraving to identify the thread diameter, pitch, and rotation direction for installation (Left Hand threads).