Alexander Arms 6.5 Grendel SBR 11.5in Pistol Complete Upper Receiver

Alexander Arms 6.5 Grendel SBR 11.5in Pistol Complete Upper Receiver. This upper receiver assembly is intended for use with a registered SBR or class III lower receiver. It is 100% complete and compatible with any standard-specification lower receiver. All NFA rules apply. All Alexander Arms upper receiver assemblies are fully-complete, function-tested, and ready to fire. Specifications: Caliber 6.5mm Grendel, Overall Length 20 in, Barrel Length 11.5 in, Barrel Profile SBR Tactical, Barrel Twist Rate 1-8, Threads per Inch 5/8x24, Finish Anodized, Color Black, Fabric/Material Steel, Gun Make AR Platform, Gun Model AR-15, Weight 3.4 lb. Features: Thread Protector, Standard Charging Handle, LAR Alexander Arms Branded Hand Guard, One 10-round magazine. Package Contents: Alexander Arms 6.5 Grendel SBR 11.5in Pistol Complete Upper Receiver. Compatible with AR-15 upper.