The Colt LE6920-FBP2 builds on the venerable Colt LE6920 adding key accessories for this special makeup including a Geissele 13-inch MK4 rail system and Magpul Pro flip-up front and rear sights. – Model Name: Carbine – Caliber: 5.56 x 45MM – Capacity: 30 + 1 – Upper Rec. Material: 7075-T6 Aluminum – Upper Rec. Finish: Black Hardcoat Anodized – Barrel Material: 4150 CMV – Barrel Technical: 1:7RH 6 Groove Chrome Lined – Barrel Length: 16.1 – Overall Length: 32.5-36 (82.5-91.5cm) – Unloaded Weight: 7.3 lbs. (3.3kg) – Safeties: Reversible Safety Selector – Lower Rec. Material: 7075-T6 Aluminum – Lower Rec. Finish: Black Hardcoat Anodized – Front Sight: Magpul MBUS PRO Steel Backup – Rear Sight: Magpul MBUS Pro LR Adjustable – Fire Mode: Semi-Automatic – Trigger Type: Single Stage – Rail: Geissele 13 MK4 Free-Float Rail – Grip: Government A2 Grip – Stock: Magpul CTR 4-Position Stock – Operating System: Direct Gas Impingement – Included Accessories: 30rd Magpul PMAG Magazine Manual Cable Lock