Underwood Ammo 877Underwood Ammo 877 Xtreme Defense Platinum 9mmLuger+P+ 90gr Solid Monolithic 20 Per Box/10 Case
$26.98
Underwood Ammo 877 Xtreme Defense Platinum is a 9mm Luger +P+ round engineered for serious self-defense and concealed-carry applications. Loaded with a 90-grain solid monolithic projectile, this ammunition delivers the kind of terminal performance that matters when it counts. If you're carrying daily and demand ammunition that won't compromise on velocity, expansion, or consistency, Xtreme Defense Platinum is built to answer that call.
The solid monolithic construction eliminates jacket-core separation and ensures reliable expansion even through common barriers like heavy clothing or intermediate materials. This design philosophy makes Xtreme Defense Platinum a smart choice for personal protection in unpredictable scenarios. The +P+ loading pushes velocity and energy beyond standard 9mm specs, giving you measurably faster bullet performance without sacrificing accuracy or control in quality firearms rated for +P ammunition.
Underwood backs this ammunition with the kind of attention to detail that separates serious defensive loads from bulk range rounds. Each box contains 20 rounds, and cases ship in quantities of 10 boxes, making it practical to stock up on reliable, consistent ammunition you trust. Whether you're building a dedicated defensive ammo supply or rotating fresh inventory into your carry gun, Xtreme Defense Platinum delivers the ballistics and reliability you'd expect from a premium defensive cartridge.
Key Features
- 90-grain solid monolithic projectile for consistent expansion and penetration
- 9mm Luger +P+ loading for elevated velocity and energy
- 20 rounds per box; case quantity of 10 boxes (200 rounds total)
- Engineered for self-defense and concealed-carry applications
- Designed to perform through barriers and intermediate materials
Specifications
| Caliber | 9mm Luger +P+ |
| Bullet Weight | 90 grains |
| Bullet Type | Solid Monolithic |
| Rounds Per Box | 20 |
| Boxes Per Case | 10 |
| Total Rounds Per Case | 200 |
Frequently Asked Questions
What firearms are safe for 9mm +P+ ammunition?
9mm +P+ ammunition is loaded to higher pressures than standard 9mm Luger. Always verify that your firearm is rated for +P or +P+ ammunition before using this round. Check your owner's manual or contact the manufacturer if you're unsure of your gun's pressure rating.
Is Xtreme Defense Platinum good for concealed carry?
Yes. The solid monolithic bullet, elevated velocity from the +P+ loading, and compact 90-grain weight make this round a viable choice for self-defense and daily carry in firearms rated for +P pressure.
How many rounds come in a case?
Each case contains 10 boxes of 20 rounds, for a total of 200 rounds per case.
What's the advantage of a monolithic bullet?
Solid monolithic construction eliminates the jacket-core separation that can occur with traditional hollow-point designs. This promotes more consistent and reliable expansion, even when the bullet passes through barriers or heavy clothing.
