Diamondback Firearms DB15 rifle made entirely in the USA. It uses a gas-impingement system and high quality CNC machined components. The DB15 model features a 4140 stainless steel barrel, forged 7075 T6 aluminum lower and upper receiver, no sights, and a carbine length gas system. This model has a 16" stainless steel barrel with an DBSB brake, an UTG Pro AR15 Ready S1 Mil-Spec stock, UTG AR15 Combat Sniper pistol grip, 15" M-Lok handguard, and a black hardcoat anodized receiver finish. This item is California Compliant.