Sons of Liberty Gun Works 5.56x45mm NATO 55-grain FMJ ammunition is engineered to provide consistent performance for training and general operational requirements. Manufactured to stringent standards, this ammunition ensures reliable function across compatible AR-platform rifles and other 5.56NATO chambered firearms.
Key Features
Caliber & Ballistics
This ammunition features the standardized 5.56x45mm NATO chambering with a 55-grain Full Metal Jacket (FMJ) projectile. This bullet weight represents a common and predictable load, offering a consistent trajectory suitable for a broad range of training scenarios and general target engagement. The FMJ design mitigates lead fouling in the bore while ensuring reliable feeding into the chamber.
Construction & Reliability
Each round is manufactured with a non-corrosive primer, a clean-burning propellant, and a brass casing, engineered for consistent ignition and dependable cycling. The manufacturing process maintains tight tolerances on projectile seating depth and powder charge weight, contributing to uniform muzzle velocity and reduced shot-to-shot variation for consistent ballistic performance.
Application
Optimized for high-volume training and general utility, this ammunition provides consistent performance characteristics. It serves as a dependable choice for maintaining shooter proficiency and function-testing firearms without introducing variables from inconsistent ammunition.
Technical Specifications
- Caliber: 5.56x45mm NATO
- Bullet Weight: 55 Grain
- Bullet Type: Full Metal Jacket (FMJ)
- Casing Material: Brass
- Primer Type: Non-Corrosive, Boxer
- Quantity: Available in 50-round boxes; case quantity of 1000 rounds (20 boxes)
- Manufacturer: Sons of Liberty Gun Works (SOLGW)









