Heckler & Koch 81000580 Mr556 A1 5.56X45mm Nato 16.50" 10+1, Black, Adjustable Stock, Polymer Grip, Gas Piston Driven System 642230262560

Action: Semi-Auto
Caliber: 5.56x45mm NATO
Barrel Length: 16.50"
Capacity: 10+1
Safety: Ambidextrous
OAL: 33.90"- 37.68"
Weight: 8.60 lbs
Stock Description: Adjustable
Receiver Material: Aluminum
Sights: Optic Ready
Barrel Description: Medium Contour
Twist: 1:7"
Barrel Length Range: 16" to 16.99"
Weight Range: 8 lbs to 8.99 lbs
Hand: Right
Stock Finish Group: Black
Metal Finish Group: Blued/Black