Grip-Rite 3 in. x 0.120 in. 21° Plastic Collated Vinyl Coated Smooth Shank Round Head Framing Nails 4000 per Box GR301 - The Home Depot

The Estwing EFR2190 Pneumatic 21 Degree 3-1/2 in. Framing Nailer with Adjustable Metal Belt Hook, 1/4 in. NPT Industrial Swivel Fitting, and Bag is ideal for working on framing, subfloors, roof decking, pallet and shipping crate assembly, and wood fencing. This air powered framing gun is both durable and lightweight, resulting in a rugged tool perfect for extended use. Built to last and designed for superior performance, the nailer features a dual-mode trigger, anti-dry-firing design, tool-free depth adjust, a removeable no mar safety tip, and a comfort grip handle. Suitable for any professional construction contractor at the jobsite or DIYer at home, this siding nail gun includes a heavy duty zippered canvas bag with detachable shoulder strap, adjustable metal belt hook, and 1/4 in. NPT swivel plug. The Pneumatic 21 Degree 3-1/2 in. Framing Nailer is part of Estwing's professional line of pneumatic tools, and is covered by a 5 Year Professional Tool Warranty and 90 Day Wearable Parts Warranty