Spike's Tactical strives to build the highest quality products and offer them at the best possible price to the consumer. It doesn't matter if you are simply a gun enthusiast, a competitive 3 gun shooter or a military or law enforcement professional, Spike's Tactical rifles will serve you well and won't let you down when it counts. • 7075 T6 Aluminum • Multi Caliber • Type III Class 2 Hard Coat Anodized SPECS: Manufacturer Spikes Model Upper/Lower Receiver UPC 855319005600 SKU STS1019 Width 5.2500 Length 9.7500 Height 3.2500 Weight 1.4400 Caliber 5.56x45mm NATO