What's in the Box NexGen NG15 223 Wylde Semi-Auto Rifle Black Nitride Finish (1) 30 Round Magazine Cable Lock Owners Manuel The NG 15 combines all of the durability and reliability the Ready Series is known for with streamlined, no-nonsense features designed for dependable performance and versatility. Firearm Features 15" M-LOK aluminum handguard with full-length Picatinny top rail Low-profile .750 gas block for a clean, lightweight profile Nitride bolt carrier group for enhanced durability Mil-spec charging handle 6-position adjustable stock Standard pistol grip Hard coat anodized finish Firearm Specifications Model: NG 15 Caliber: 223 Wylde Barrel Length: 16" Barrel Type: HBAR 4150 Chromoly, nitride, double stress relieved, button rifled Muzzle: 1/2x28 threaded Twist Rate: 1:8 Upper Receiver: Aluminum billet Lower Receiver: Aluminum billet Gas System: Carbine length Gas Block: .750 low profile, 4150 steel, black oxide Stock: 6-position adjustable, black Grip: Standard Finish: Hard coat anodized Magazine: 1 x 30-round polymer