Description PRODUCT DETAILWeight: 140 oz Dimensions: 40.55 Ã 8.75 Ã 3.00 in Accessories :1 Mag Action: Semi-Auto, Semi-automatic Type of Barrel: M4 Barrel Length: 16.1", 16.10" Capacity: 30+1, 30Rd Finish or Color: Black, Blued/black, Matte Caliber or Gauge: 223 Remington/556NATO, 5.56x45mm Nato Grips or Stock: 4 Position Collapsible, Polymer Manufacturer: Colt Manufacuring Co Inc, Colt's Manufacturing Manufacturer Part #: CR6920 Model: CR6920 Sights: A2 Front, Magpul Rear, Magpul Backup Flip Sight Type: AR Trigger: Standard Safety: Lever OAL: 32"-35.50" Manufacturer Weight: 6.90 Lbs Muzzle: A2 Flash Hider Frame/Material: 7075 T6 Aluminum Barrel Description: Chrome-Lined Twist: 1:7" Weight Range: 6 Lbs To 6.99 Lbs Hand: Right Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.