Daniel Defense M4A1 RIS II - 556 NATO - 14.5" - 1:7 - Carbine - FDE

Elite Performance with SOCOM-Proven Design

For firearm enthusiasts and professionals seeking a top-tier upper receiver group, this M4A1 configuration from Daniel Defense delivers unmatched reliability and precision. Designed with the same Rail Interface System (RIS II) trusted by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005, this upper receiver is built for high-stakes environments. Whether you're in tactical operations, competitive shooting, or rigorous training scenarios, the free-floating rail system ensures your barrel's harmonics remain unaffected by mounted accessories like an M203 grenade launcher, maintaining a consistent point of impact. This is the ideal choice for operators and marksmen who demand performance in the field or at the range.

• Rail Interface System (RIS II): Two-piece, free-floating design for superior accessory mounting without barrel interference.
• Barrel Specs: 14.5" Cold Hammer Forged with an M4 profile, ensuring durability and accuracy under extreme conditions.
• Flash Suppressor: Permanently attached improved design, extending overall length to meet NFA 16" requirements.
• Bolt Carrier Group: M16 profile, included as standard for reliable cycling and compatibility.
• Bolt-Up System: Utilizes 6 grade 8 bolts for a robust, stable connection that supports accessory weight without stressing the barrel.
• Rail Panels: Made from durable Santoprene for enhanced grip and heat resistance during extended use.

When the mission calls for precision and adaptability, this upper receiver group shines during critical operations or high-intensity training sessions. Its innovative two-piece rail design allows for partial