Atomic Ammunition 5.56 NATO 125gr Subsonic Round Nose 20rd Box

The Atomic Ammunition 04959 delivers reliable subsonic performance in 5.56 NATO chambering, engineered for suppressed shooting applications where reduced noise signature is critical. This specialized ammunition maintains consistent velocities below the sound barrier while providing effective terminal performance through its 125-grain round nose projectile design.

What Makes This Different

Unlike standard 5.56 NATO ammunition that produces supersonic crack, this subsonic load operates at velocities under 1,100 fps to eliminate the sonic boom that compromises stealth operations. The 125-grain bullet weight provides superior stability in flight compared to lighter subsonic alternatives, while the round nose profile ensures reliable feeding in semi-automatic platforms. Atomic's precision loading techniques maintain velocity consistency within 15 fps standard deviation for predictable point of impact.

Key Features

• 125-grain round nose bullet optimized for subsonic velocity
• Velocity maintained below 1,100 fps to eliminate sonic crack
• Premium brass cases with consistent wall thickness
• Clean-burning powder formulation reduces fouling
• Reliable feeding in AR-15 and similar platforms
• 20 rounds per box, 10 boxes per case (200 total rounds)
• Quality control testing ensures consistent performance

This ammunition excels in tactical applications where noise reduction is paramount, including law enforcement operations and hunting scenarios requiring minimal sound signature. The heavier bullet weight maintains sufficient energy for effective performance at typical engagement distances while cycling reliably in gas-operated firearms. Weather-resistant primer sealing and quality brass construction ensure dependable ignition and extraction across temperature extremes.

Technical Specs

• Caliber: 5.56x45mm NATO
• Bullet Weight: 125 grains
• Bullet Type: Round Nose
• Muzzle Velocity: Under 1,100 fps
• Case Material: Boxer-primed brass
• Quantity: 20 rounds per box, 10 boxes per case
• UPC: 858767004959

Professional shooters and tactical operators choose this subsonic load when mission requirements demand reduced acoustic signature without sacrificing reliability. The consistent quality control and proven performance make this ammunition a dependable choice for suppressed shooting applications.