Underwood Ammo Xtreme Defense Platinum 9mm Luger +P 90gr Solid Monolithic – 20 Rounds

Engineered for maximum terminal performance, the Underwood Ammo Xtreme Defense Platinum in 9mm Luger +P delivers a level of stopping power that traditional hollow points simply can’t match. The 90-grain solid monolithic projectile features an optimized nose flute design that produces a Permanent Wound Cavity (PWC) over 100% larger in diameter and volume than conventional expanding bullets — all without relying on expansion to achieve results.

Unlike hollow points that can clog or fail to expand after passing through intermediate barriers, the Xtreme Defense solid copper construction maintains its full terminal performance through wallboard, sheet metal, and automotive glass. This makes it an exceptional choice for self-defense, home defense, and concealed carry applications where barrier penetration and consistent wound channel performance are critical.

Built on the proven Xtreme Penetrator platform, each round is loaded to +P pressures and engineered to achieve penetration depths up to 18 inches — meeting and exceeding FBI ballistic testing standards. Every cartridge is seated in a nickel-plated brass casing, providing enhanced corrosion resistance, reliable feeding across all firearm actions, improved cosmetics, and easier reloading. Nickel-plated brass also resists tarnishing during storage and when in contact with leather, moisture, and other metals — ideal for those who carry daily.

Each box contains 20 rounds of this premium self-defense ammunition.

**Key Features:**
– Caliber: 9mm Luger +P
– Bullet Weight: 90 Grain
– Bullet Type: Solid Monolithic Xtreme Defense
– Penetration Depth: Up to 18 inches
– Permanent Wound Cavity exceeds traditional expanding hollow points
– Barrier-blind performance through wallboard, sheet metal, and auto glass
– Nickel-plated brass casings for corrosion resistance and reliable feeding
– 20 rounds per box

Shop online at Deep Roots Rifle Co for fast shipping nationwide, or stop by our gun store in Eustis, Florida to pick up this premium self-defense ammo in person. Our knowledgeable staff is always on hand to help you find the right load for your carry firearm.