Underwood Ammo UA 817 9mm Luger +P+ Xtreme Defender 90 Grain Solid Monolithic Rounds

The Underwood Ammo UA 817 9mm Luger +P+ Xtreme Defender is engineered for maximum penetration and reliable performance in personal defense situations. Featuring a 90-grain solid monolithic copper bullet, this ammunition is designed to deliver deep penetration of up to 18 inches with a permanent wound cavity (PWC) that is over 100% larger than conventional expanding bullets. Its optimized nose flute, total weight, and high velocity of 1550 fps ensure consistent expansion even when shot through barriers such as drywall, sheet metal, or automotive glass. This makes it an excellent choice for those seeking maximum stopping power and barrier penetration in critical self-defense scenarios. The ammunition's construction, with a solid copper body, maintains integrity through various obstacles, ensuring the wound channel remains unaffected by common barriers. The nickel-plated brass casings improve feeding reliability across all firearm actions, resist corrosion, and maintain a cleaner appearance during reloading. The +P+ rating signifies that these rounds are loaded for higher pressure, providing increased muzzle energy of 480 ft-lbs for enhanced stopping power. Packaged in boxes of 20 rounds, with ten boxes per case, this ammunition is suitable for law enforcement, security personnel, or serious personal defense enthusiasts seeking high-performance handgun rounds. The combination of advanced projectile design and durable casing material makes the Underwood Ammo Xtreme Defender a dependable choice for demanding self-defense needs.

Features:

• Optimized nose flute and total weight for maximum penetration and wound cavity size

• Barrier blind design maintains expansion and penetration through common obstacles

• Solid copper monolithic bullet provides deep, consistent penetration

• High velocity of 1550 fps delivers reliable expansion and stopping power

• Nickel-plated brass casing enhances feeding, corrosion resistance, and reloading ease

• +P+ rated for increased muzzle energy and performance