Expo Arms Barreled AR-15 Upper Receiver - 5.56 - 10.5"

The Expo Arms Barreled AR-15 Upper Receiver chambered in 5.56 NATO with a 10.5" barrel is built from Mil-Spec heavy duty components from the 4150 CMV barrel to the free float M-LOK handguard. The 10.5" barrel features a government profile and is fully Nitrided for a long service life, while the carbine gas port ensures reliability and the 1:7 twist rate is optimized for a wide range of bullet types. The 9.5" free float handguard features M-LOK slots for maximum accessory compatibility and positioning with anti-rotation tabs for a no compromise design. Building a new AR pistol or SBR? Choose Expo Arms!

Features:

• Forged Mil-Spec 7075-T6 receiver with anodized finish
• 10.5" Government profile carbine length barrel
• Chambered in 5.56 NATO with 1:7 twist rate
• Fully Nitride finished barrel
• 9.5" Free float M-LOK handguard
• Full length top rail with anti-rotation tabs
• Does not include BCG or charging handle

Expo Arms builds mil-spec AR-15 components exclusively for Primary Arms, backed by a limited lifetime warranty against manufacturer defects.