Global Ordnance 5.56x45mm M193 ammunition is factory-new, brass-cased, Boxer-primed, and reloadable, offering military-grade performance in a commercially available package. Manufactured to strict NATO STANAG 4172 and MIL-C-9963F specifications, this high-quality ammunition is designed for reliable function and accuracy in 5.56mm firearms. Key Features: a Caliber: 5.56x45mm M193 a Bullet Weight: 55 Grains a Bullet Type: Full Metal Jacket (FMJ) a Case Type: Brass (Reloadable) a Primer Type: Boxer a Packaging: 20-round box, 1000-round case