16 inch triple black chrome moly phosphate finished 5.56/.223 WYLDE or NATO barrel
shoots both 5.56 and .223 rounds
* m4 contour
m4 feed ramps
carbine gas length
uses a .750 gas block INCLUDED
INCLUDES ROLL PIN AND CARBINE GAS TUBE.
barrel may be marked differently then in picture-but will be marked with caliber and twist rate