Armalite AR10 3 Gun Upper Assy 13.5" bbl UAR103GN13

The ArmaLite AR-10 3-Gun Upper Assembly with 13.5" Barrel is a competition-focused .308 Winchester upper receiver assembly built specifically to meet the demanding performance requirements of 3-gun competition while giving shooters the most compact and agile AR-10 upper configuration in the ArmaLite catalog. The 13.5" chrome-lined barrel strikes an aggressive balance between portability and power, enabling lightning-fast target transitions and stage navigation while still delivering the hard-hitting .308 ballistic performance that gives competitors a meaningful advantage over smaller caliber platforms at longer stage distances. Machined from aircraft-grade 7075-T6 aluminum and finished with a Type III hard-coat anodize, the upper receiver is built to withstand the rigors of high-round-count competition use while maintaining the tight tolerances and consistent fit that ArmaLite is renowned for across its entire product lineup. The free-float handguard design eliminates any contact with the barrel, preserving the inherent accuracy of the assembly while providing a full-length mounting surface for lights, grips, and other competition accessories that modern 3-gun stages demand. Compatible with any standard AR-10 pattern lower receiver, the UAR103GN13 is the ideal upper assembly for competitors looking to build or upgrade a dedicated 3-gun rifle around one of the most proven and trusted names in American precision rifle manufacturing.