M4 CARB 5.56MM 16" GEISSELE Manufacturer Model Number: LE6920-FBP2 Manufacturer: Colt Model: Carbine Caliber: 223 Rem | 5.56 NATO Type: Rifle Item Type: Firearm Firearm / Accessory Action: Semi-Auto Firearm / Accessory Capacity: 30 + 1 Finish: Matte Black Hardcoat Anodized Sights: MAGPUL Pro MBUS Stock Frame Grips: Collapsible / Folding Stock 4-Position Magpul CTR Magazine Quantity and Description: 1 30 rd. Overall Length: 32.5" - 36" Weight: 7.3 lbs. Shipping Weight: 0.7 Feature: Geissele 13" MK4 Rail Feature: Single Stage Trigger Optic Adjustable Objective: false Optic Reticle Illuminated: false