GD-OTS / SUPPLIERS
MEDIUM CALIBER AMMUNITION
20mm MK149 Phalanx
MEDIUM CALIBER AMMUNITION
20mm MK149 Phalanx
20mm MK149 APDS
Armor-Piercing Discarding Sabot
The 20mm MK149 Armor-Piercing Discarding Sabot cartridge provides a significant anti-armor capability with optimized ballistic performance and short time-of-flight to target. Compatible with the NAVY’s PHALANX Anti-Ship Missile Defense System and the M61 and M197 gun systems.
General Dynamics Ordnance and Tactical Systems is the sole developer and qualified producer of the 20mm MK149 Armor-Piercing Discarding Sabot (APDS) cartridge. We have produced in excess of 20 million rounds of ammunition for the U.S. NAVY’s PHALANX Anti-Ship Missile Defense System.

Designed to defeat anti-ship missiles and other close-in air and surface threats
Advantages:
- Compatible with all M61 and M197 gun systems
- Compatible with all MK15 PHALANX systems and Block MOD upgrades
- Increased impact and residual energy at target over the M50 Series
- Approved for export
Delivering The Best To The Best®
General Dynamics Ordnance and Tactical Systems is a global aerospace and defense company. We are a committed to providing the U.S. military and its allies with an extensive range of overarching products that provide a cutting-edge advantage to our war fighters. A General Dynamics Company.
Our Businesses
Corporate Headquarters:
11399 16th Court N., Suite 200
St. Petersburg, FL 33716
Main Number: (727) 578-8100
Follow Us
GD 166,20 -1,86 -1,11%