Geissele 08-396B SUPER 5.56 14.5" Rifle

The Geissele 08-396B Super Duty Mod1 556 14.5" BLK is a semi-automatic rifle platform purpose-built for professional end-users—law enforcement, military, and serious civilian operators who demand reliability under pressure. This complete upper receiver assembly represents over two decades of Geissele's combat-proven engineering, refined through direct feedback from active-duty units and tactical teams. The 14.5-inch barrel length strikes the critical balance between velocity retention, maneuverability in confined spaces, and controllability under rapid-fire engagement.

The Super Duty platform uses Geissele's proprietary barrel profile and chamber geometry to deliver tight tolerances and consistent accuracy across a broad ammunition spectrum. The 14.5-inch Geissele barrel is specifically optimized for 5.56 NATO, providing superior velocity consistency and minimal shot deviation out to 300 meters—the effective range for most tactical deployments. The semi-automatic action cycles with smooth, predictable reliability thanks to Geissele's tuned gas block system and precision machining. At 9.1 lbs, the rifle maintains a lightweight profile suitable for extended operational periods while the polymer stock and black finish reduce reflectivity for low-visibility work. The removable magazine format allows rapid reload capability and compatibility with standard AR-platform ammunition.

Professional operators—SWAT teams, federal agents, and military personnel—select the Super Duty Mod1 for urban CQB, vehicle operations, and compact storage scenarios where barrel length directly impacts tactical effectiveness. The rifle accepts standard AR-15 lower receivers without modification, making it fully compatible with existing inventory and maintenance infrastructure. No magazine is included with this upper receiver assembly; operators should source quality 5.56 NATO magazines rated for defensive use. Installation on a compatible lower requires only standard armorer-level assembly—a process well within the scope of any credentialed tactical team. The Super Duty Mod1 8-396B remains production-proven across federal and state law enforcement agencies, delivering the consistency and durability required when lives depend on performance.