Hornady Critical Duty 9mm Luger 135 Grain FlexLock Ammo - Box of 25

The Hornady Critical Duty 9mm Luger 135 Grain FlexLock Ammo is a duty-grade defensive round engineered for consistent performance through real-world barriers. This 25-round box delivers 1010 feet per second at the muzzle with 306 foot-pounds of energy—a ballistic profile built for urban and tactical environments where barrier penetration and reliable expansion matter.

The FlexLock bullet design addresses a real problem: traditional hollow-points can clog on intermediate barriers like clothing, drywall, or auto glass. Hornady's Flex Tip cavity stays clear, promoting consistent expansion even after deflection. The InterLock band mechanically locks the jacket to the core, preventing separation and preserving bullet weight through intermediate barriers and beyond—a critical factor in FBI protocol testing.

If you're running duty ammo for law enforcement, armed security, or serious defensive carry where your round may encounter real-world obstacles, Critical Duty is formulated for that demand. The 135-grain load balances velocity, energy, and controllability in 9mm, making it a working choice for those who need ammunition they can trust under pressure.

Key Features

• FlexLock Flex Tip design eliminates clogging on barriers and promotes expansion
• InterLock jacket-to-core band maintains bullet integrity and weight retention
• Engineered for barrier performance: tested through FBI protocol materials
• 1010 fps muzzle velocity with 306 ft-lbs energy
• Box of 25 rounds for field use or practice qualification

Specifications

Frequently Asked Questions

What makes FlexLock different from standard hollow-point defensive ammo?

The FlexLock Flex Tip cavity is designed not to clog when the bullet passes through soft barriers like clothing or intermediate obstacles. This promotes more consistent expansion compared to hollow-points that can collapse or fail to expand after hitting a barrier.

Is Critical Duty ammunition suitable for both duty use and personal defensive carry?

Critical Duty is engineered specifically for law enforcement and tactical professionals, tested through FBI barrier protocols. It's appropriate for anyone whose defensive scenario may involve real-world obstacles.

What is the InterLock band and why does it matter?

The InterLock is a mechanical band that locks the bullet jacket to the core. It prevents jacket and core separation during expansion, ensuring the bullet retains maximum weight and energy delivery through barriers and into the target.

How many rounds are in a box?

Each box contains 25 rounds of 9mm Luger ammunition.