.50 Beowulf Upper Assemblies | Premium Quality Uppers

.50 Beowulf Upper Assemblies

Upgrade your rifle with premium .50 Beowulf AR upper assemblies from Moriarti Armaments. Designed for shooters seeking big bore AR-15 performance, our 50 Beowulf complete uppers deliver exceptional power for hunting, recreational shooting, and custom rifle builds. Choose from a variety of barrel lengths, handguard styles, and configurations built with quality components for dependable reliability and accuracy. Compatible with Mil-Spec AR-15 big bore lower receivers, our .50 Beowulf uppers provide an easy way to transform your AR-15 into a hard-hitting platform. Whether you're building a new rifle or upgrading an existing firearm, Moriarti offers premium 50 Beowulf AR uppers engineered for long-lasting performance.

Do I need a special lower receiver for a .50 Beowulf AR upper?

A .50 Beowulf AR15 upper can generally be used with a Mil-Spec AR-15 lower receiver, but the lower should be set up appropriately for the heavier cartridge. For reliable cycling, we recommend a buffer weighing at least 4.3 oz, along with a compatible spring and .50 Beowulf-specific magazine. A caliber-specific bolt, 6.5 grendel, is also required. Always verify your complete lower setup and component compatibility before use.