Ruger Upper Receiver Fits AR-15 Pattern Rifle and Pistols Assembled Black. Inc. is one of the nation's leading manufacturers of rugged reliable firearms for the commercial sporting market. With products made in America Ruger offers consumers almost 800 variations of more than 40 product lines across the Ruger Marlin and Glenfield brands. Specifications for Ruger Upper Receiver Fits AR-15 Pattern Rifle and Pistols Assembled Black: Manufacturer: Ruger Finish: Black Color: Black Gun Make: AR Platform Gun Model: AR-15 Additional Features: Upper Handle Color: Black Features of Ruger Upper Receiver Fits AR-15 Pattern Rifle and Pistols Assembled Black: Complete AR Upper Forged Housing Package Contents: Ruger Upper Receiver Fits AR-15 Pattern Rifle and Pistols Assembled Black What firearm models does the manufacturer say Ruger Upper Receiver Fits AR-15 Pattern Rifle and Pistols Assembled Black is compatible with? The manufacturer says that Ruger Upper Receiver Fits AR-15 Pattern Rifle and Pistols Assembled Black is compatible with AR-15