AR-15 Upper Assemblies

Moriarti's AR-15 Upper Assemblies for Custom Builds & Upgrades

Discover AR-15 upper assemblies from Moriarti Armaments, built for shooters seeking quality, reliability, and performance. Our collection includes complete and stripped upper assemblies in popular calibers such as 5.56 NATO, .223 Wylde, 300 AAC Blackout, 7.62x39, 6MM ARC, 6.5 Grendel, .350 Legend, .450 Bushmaster, .50 Beowulf, .22 LR, and more. Choose from a variety of barrel lengths, handguard styles, muzzle devices, and finishes to build or upgrade your AR-15. Whether you're looking for a compact pistol upper, a carbine configuration, or a full-size rifle upper, Moriarti Armaments offers options compatible with most standard mil-spec AR-15 lower receivers.

Will these AR-15 upper assemblies fit my lower receiver?

Most AR-15 upper assemblies are designed to fit standard mil-spec AR-15 lower receivers. Always verify caliber compatibility and product specifications before purchasing.