Underwood Ammo 9mm Luger 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Platinum Edition 20 Rounds. Specifications for Underwood Ammo 9mm Luger 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: 9mm Luger Number of Rounds: 20 Bullet Type: Monolithic Bullet Weight: 90 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1400 ft/s Muzzle Energy: 392 ft-lbs Application: Self-Defense Package Type: Box Primer Style: Centerfire Lead Free: Yes Package Contents: Underwood Ammo 9mm Luger 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 875: 9mm Luger 90 Grain Xtreme Defender Solid Monolithic Nickel Plated Brass Cased Pistol Ammo Platinum Edition 20 Rounds