B&C Eagle US1116LMA A11/T50 Series Long Magnetic Auto Stapler, Grey Long mag auto fire stapler with adjustable fire rate Works with 1/4" to 9/16", 3/8" Crown A11/T50 Style Fine Wire Staples Lightweight aluminum housing, 3lbs total weight Bottom load magazine, Comfortable rubber grip Rear facing exhaust / 65-100psi Operating Pressure