Product Description
Brn-15 13.7'' Upper Receiver Assembly .750'' Gas Block 5.56mmCartridge : AKK_5.56 x 45
Color : Black
Contour : Government
Finish : Anodized
Length : 13.7''
Make : AR-15
Make/Model : AR-15
Muzzle : 1/2-28
Style : Assembled
Twist : 1-7