SKU AAC556FMJ1-20 Brand AAC Model Number AAC556FMJ1-20 UPC 850032424561 DETAILS Brand: AAC Bullet Type: Full Metal Jacket Casing: AAC Brass-Boxer Primed, Fully Reloadable Caliber: 5.56 NATO Quantity: 20 Bullet Weight: 55gr Velocity: 3175 FPS FEATURES The 5.56 55GR FMJ Ammunition from AAC delivers superior performance when you need it most. Designed for use in a variety of applications and manufactured through AAC's advanced research, design, and engineering process with state-of-the-art, quality machines, and materials.