The Grip-Rite RED System GRTCS250 coil nailer is designed with the professional contractor in mind. As part of the RED System, it features a lightweight and balanced design and excellent firing power to handle your toughest jobs from siding and fiber cement to trim, fencing, cedar shake, soffit and other manufacturing applications. The tool is equipped with a 360 tool-free air exhaust, rotating belt hook and a durable molded rubber comfort grip. The GRTCS250 has a magazine capacity of 200-350 depending on the fastener type. It shoots 15 plastic coil nails with a length of 1-1/4 in. to 2-1/2 in. (Plastic) and 1-3/4 in. to 2-1/2 in. wire.