What's in the Box Daniel Defense DDM4A1 RII (5.56 NATO) rifle (1) 32 Round Daniel Defense magazine Daniel Defense full-latch impact plastic case Owner's Manual The Daniel Defense DDM4A1 RII is a hard-use, duty-ready 5.56mm NATO AR-15 style carbine built around a proven 14.5" M4-profile barrel and a rugged, free-float quad-rail handguard designed for serious accessory mounting. With a carbine-length gas system and a Picatinny top rail , the DDM4A1 RII delivers the handling and reliability shooters expect from Daniel Defense ideal for enthusiasts looking for a premium 5.56 carbine with rock-solid build quality, excellent fit and finish, and all the mounting real estate needed for lights, lasers, grips, and optics. Firearm Features Daniel Defense DDM4A1 RII platform with free-float quad-rail handguard for maximum accessory mounting 5.56mm NATO chambering (also compatible with most .223 Remington loads per manufacturer guidance) 14.5" M4-profile barrel for balanced handling and classic carbine feel. Includes pinned and welded muzzle device. Carbine-length gas system for proven cycling and performance 1/2 x 28 muzzle threads (TPI) for common 5.56 muzzle device compatibility Picatinny mounting system for optics and accessories Firearm Specifications Manufacturer: Daniel Defense Model: DDM4A1 RII Caliber: 5.56mm NATO Barrel Length: 14.5" w/Pinned and Welded muzzle device; M4 Profile Overall Length: 31 1/2" 34 3/4" (with muzzle device) Sights: None Grips/Stock: DD Furniture Magazine Capacity: 32 Rounds