Underwood Xtreme Defender 9mm Luger +P 90gr

Underwood Xtreme Defender: Purpose-Built Self-Defense Ammunition

The Xtreme Defender represents a significant advancement in defensive ammunition design. Built on proven engineering principles, this round prioritizes what matters most in a defensive scenario: reliable penetration and maximum effectiveness.

Ballistic Performance

• Velocity: 1475 feet per second
• Muzzle Energy: 435 foot-pounds
• Bullet Weight: 90 grains
• Penetration Depth: Up to 18 inches
• Construction: Solid copper monolithic design

Superior Wound Characteristics

The Xtreme Defender's optimized nose flute geometry creates a permanent wound cavity over 100% larger than conventional expanding hollow points. Critically, this ammunition achieves consistent expansion even after passing through intermediate barriers—wallboard, sheet metal, and automotive glass have minimal effect on performance. The solid copper body ensures barrier-blind reliability, a genuine advantage in real-world defensive situations.

Brass and Reliability

Nickel-plated brass casings offer multiple practical benefits: enhanced feeding reliability across all firearm actions, superior corrosion resistance compared to traditional brass, and easier cleanup if you reload. The nickel plating prevents tarnishing during storage and resists damage from contact with leather, moisture, and other metals.

Specifications

• Caliber: 9mm Luger +P
• Bullet Diameter: 0.355"
• Ballistic Coefficient (G1): 0.087
• Sectional Density: 0.102
• Primer: Boxer (reloadable)
• Case Material: Nickel-plated brass
• Lead-Free: Yes
• Suppressor Safe: Yes
• Supersonic: Yes

About This Ammunition

This is new production, non-corrosive ammunition manufactured to exacting standards. Each box contains 20 rounds ready for immediate use. The Xtreme Defender is specifically engineered for self-defense applications where performance under stress is non-negotiable.