Ruger Upper Parts Kit Fits AR Pattern Rifles and Pistols. Inc. is one of the nation's leading manufacturers of rugged reliable firearms for the commercial sporting market. With products Ruger offers consumers almost 800 variations of more than 40 product lines across the Ruger Marlin and Glenfield brands. Specifications for Ruger Upper Parts Kit Fits AR Pattern Rifles and Pistols: Manufacturer: Ruger Gun Make: Ruger Gun Model: Ruger LC9 Additional Features: Kit Features of Ruger Upper Parts Kit Fits AR Pattern Rifles and Pistols: Forward Assist Assembly Package Contents: Ruger Upper Parts Kit Fits AR Pattern Rifles and Pistols What firearm models does the manufacturer say Ruger Upper Parts Kit Fits AR Pattern Rifles and Pistols is compatible with? The manufacturer says that Ruger Upper Parts Kit Fits AR Pattern Rifles and Pistols is compatible with Ruger LC9