Mossberg Patriot Blued Black Bolt-Action Rifle - 243 Winchester - It has the patented LBA trigger and spiral-fluted bolts with knurl pattern to ensure smooth, comfortable and reliable cycling. It has a 22in barrel with recessed crown to ensure accuracy and durability. It comes with a dropbox magazine for convenient loading and unloading. This mode uses 243 Winchester ammunition. Adjustable LBA Trigger Recessed Crown 22 -Inch Barrel Spiral-Fluted Bolts