Diamondback's DB15 rifles raise the bar when it comes to features and performance and they're made entirely in the USA. These rifles start with the tried-and-true, U.S. Military-proven gas-impingement system and use only the highest quality components machined in Diamondback's CNC facility. From the modified Diamondback aluminum four-rail handguard, to a variety of color, sight, and stock options, the Diamondback DB15 represents value and versatility all at a very affordable price. A 16" 4140 Chrome-Moly, M4 contour, free floated barrel combines with a shot-peened, magnetic-particle-inspected Mil Spec 8620 carrier for unparallelled accuracy and durability. Forged 7075 T6 aluminum upper and lower. 4-position M4 stock. A2 pistol grip. Flat dark earth finish.