CCI Mil-Spec No. 41 5.56x45mm NATO Military Primers - 1000 Count

The CCI Mil-Spec No. 41 5.56x45mm NATO Military Primers deliver consistent ignition performance engineered to meet rigorous military specifications. These small rifle primers provide the reliable spark needed for precision ammunition loading with 5.56 NATO and .223 Remington cartridges. Built to withstand extreme conditions and storage requirements, they maintain performance integrity across temperature ranges from -65°F to +125°F.

What Makes This Different

Mil-Spec No. 41 primers exceed standard commercial primer specifications through enhanced cup thickness and anvil design. The military-grade construction provides 27% more sensitivity consistency compared to standard small rifle primers. Each primer undergoes individual inspection during manufacturing, ensuring lot-to-lot uniformity that competitive shooters and precision reloaders demand for consistent velocities and accuracy.

Key Features

• Military specification compliance for 5.56x45mm NATO ammunition
• Enhanced cup thickness prevents primer flow in high-pressure loads
• Non-corrosive, non-mercuric compound formulation
• Temperature stable from -65°F to +125°F operating range
• Compatible with .223 Remington and 5.56 NATO case specifications
• Individual primer inspection ensures consistent ignition timing
• Sealed storage packaging maintains primer integrity for extended periods

These primers excel in match-grade ammunition applications where velocity consistency directly impacts accuracy. Law enforcement agencies specify Mil-Spec No. 41 primers for duty ammunition due to their reliable ignition in adverse conditions. The enhanced sensitivity provides consistent ignition with ball powders and temperature-stable propellants commonly used in tactical ammunition. Competitive shooters report improved extreme spread numbers when switching from standard primers to the Mil-Spec variant.

Technical Specs

• Primer Type: Small Rifle, Military Specification
• Quantity: 1000 primers per box
• Compatible Calibers: 5.56x45mm NATO, .223 Remington
• Cup Material: Gilding metal with enhanced thickness
• Operating Temperature: -65°F to +125°F
• Storage Life: 10+ years in original packaging
• Country of Origin: United States
• Packaging: Factory-sealed moisture-resistant container

Reloaders building precision ammunition for competition or duty use will find the consistency and reliability of Mil-Spec No. 41 primers justifies the premium over standard options. The 1000-count packaging provides sufficient quantity for serious load development while maintaining cost efficiency. Professional ammunition manufacturers rely on these same primers for military contract production.