From the Manufacturer
The Stanley SRN175-1, Coil Roofing Nailer is built like a little tank, performs well under tough conditions, and its light-weight frame will astound you. The Stanley Roofing Nailer only weighs 4.7 lbs. and operates under normal working pressures between 70 and 120 psi. The easy-loading hard plastic canister (otherwise called the magazine) holds 120, or one standard coil, of 15-degree coil roofing nails…any brand.