Product Features & Specifications Diamondback DB1721K001 DB15 Combo 5.56x45mm NATO & 300 Blackout 16" 30+1, Black, Carbon Rec, 12" M-LOK Handguard, Magpul Carbine Stock & Grip, Includes 2 Uppers Diamondback Firearms DB15 rifle uses a gas-impingement system and high quality CNC machined c
