‘Powder Actuated Gun, Trigger Operated Single Shot, 0.22 Caliber Loads, Fasteners 2 -1/2 In. Pins and 3 In. Pin with Washer Capacity, Tool Length (In.) 14-3/4, Tool Weight (Lb.) 4.1, Steel Construction, Powder Load Automatically Ejects, Ergonomic Design, Trigger Operated, For General Purpose Concrete, Masonry And Steel Fastening’