5.56 NATO 16" BARREL1:7 TWIST NIT

CALIBER: 5.56 NATO
TWIST: 1:7
LENGTH: 16"
MATERIAL: 4140 CM
FINISH: BLACK NITRIDE
GAS SYSTEM LENGTH: MID
GAS BLOCK DIA: .750
THREAD PITCH: 1/2 X 28
CONTOUR: SOCOM