New Frontier AR-15 G-4 Slick Side Billet Upper Receiver

Model: G-4 Billet "Slick Side" (Gen 2) Upper ReceiverCaliber: MultiOther Specifications and Features of the G-4 Billet "Slick Side" (Gen 2) Upper Receiver:Machined from 7075 T6 aircraft grade billet aluminumMatte black hard-coat anodized per Mil 8625 Type 3 Class 2Compatible with all standard AR-15 components and most aftermarket partsManufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerancesSave money by building your own rifle from the ground up exactly the way you want it configuredDesigned to match lines with New Frontier Armory Billet Lower**NOTE: Some rail systems that use anti-rotation tabs may need slight modification to fit this upper. It is designed for flush mounting rails and standard hand guards. The New Frontier Armory G4 Billet Upper Receiver is proudly MADE IN THE USA by hard working American men and women.