Alexander Arms 6.5 Grendel Upper

Alexander Arms developed the 6.5 Grendel cartridge specifically to provide AR-15 platform shooters with significantly extended effective range and superior ballistic performance compared to 5.56 NATO. This complete upper represents the culmination of years of development by the cartridge's creator, offering factory-optimized components designed to extract maximum potential from the 6.5 Grendel platform. The cartridge delivers .308-level energy at extended ranges while maintaining magazine compatibility with standard AR-15 lower receivers.

The upper receiver is machined from 7075 aluminum alloy to military AR-15 specifications and features "ALEX-A 6.5 GREN" engraving for positive caliber identification. Available barrel lengths include 16", 18", and 20" configurations, all utilizing chrome moly steel with various finish options including melonite treatment for enhanced durability. The 1:8 twist rate is optimized for the range of 6.5 Grendel projectiles from 90 to 130 grains, ensuring stability with both hunting and match ammunition.

Alexander Arms complete uppers ship fully assembled and function-tested, including the complete bolt carrier group with 6.5 Grendel-specific bolt, charging handle, and gas system components. The 5/8-24 RH thread pitch accommodates a wide variety of .264 caliber muzzle devices and suppressors. These uppers excel in hunting applications, long-range target shooting, and any scenario requiring superior terminal ballistics beyond 300 yards while maintaining AR-15 platform modularity.