16.1'' Bbl Sub-assy M4 1-7 1/2-28'' Black Nitride

16.1'' Bbl Sub-assy M4 1-7 1/2-28'' Black Nitride

Make : AR-15
Muzzle Threads : 1/2-28
Finish : Stainless Black Nitride
Cartridge : AKK_5.56 mm NATO
Twist : 1-7
Gas System Length : Carbine
Length : 16.1''
Contour : M4
Make/Model : AR-15