The Diamondback DB10 is the large frame, sometimes referred to as large pattern AR style big bore rifle. This upscaled version of the standard pattern AR-15 rifle does share some parts compatibility but is its own rifle at the end of the day. This model features a mid length direct gas impingement system with a 16" light barrel. Built on a pair of forged 7075-T6 aluminum receivers, the upper and lower and perfectly matched and compliment themselves quite nicely with excellent aesthetics. This rifle also comes standard with Magpul furniture and magazine. This rifle will let you reach out and touch targets at ranges an AR-15 can only dream of.