Product Description
Brn-4 10.4'' Chrome Lined Assembled Upper ReceiverBarrel Finish : Manganese Phosphate Coated
Barrel Length : 10.4''
Cartridge : AKK_5.56 x 45
Color : Black
Contour : Medium
Finish : Manganese Phosphate
Length : 10.4''
Make : Brownells
Make/Model : Brownells|BRN-4
Model : BRN-4
Muzzle : 1/2-28
Style : Assembled
Twist : 1-7
Twist Rate : 1-7