Colt’s Manufacturing Carbine MK4, Semi-automatic, AR, 223 Remington/556NATO, 16.1" Barrel, Threaded 1/2X28, 1:7 Twist, A2 Flash Hider, Anodized Finish, Black, Magpul MBUS PRO Sight, 13" Geissele MK4 Free Float Handguard, Magpul CTR 4 Position Stock, A2 Grip, 30 Rounds, 1 Magazine LE6920-FBP2 • Action: Semi-Automatic • Capacity: 30+1 • Finish: Matte Black • Sights: Magpul Pro Flip Up Sights • Barrel length: 16.1 • Overall length: 32.5 to 36 • Geissele MK4 13 Free Float Rail/Single Stage Trig.Geissele 13" MK4 Rail Single Stage Trigger • Action: Semi-Auto • Capacity: 30 + 1 • Finish: Matte Black Hardcoat Anodized • Sights: MAGPUL Pro MBUS • Barrel length: 16.1" • Overall length: 32.5" - 36" • 15in Free-Float MLOK Rail/ Ambi Bolt Release