Stern def.Barrel 9mm 4″ 1/2-36″ 1:10 melonite ar-15
FEATURES:Caliber: 9mmLength: 4 InchesThreaded 1/2-36Twist: 1:104150 Chrome-moly steelMelonite coatingMade in the U.S.A
Other Features: Threaded 1/2-36, 1:10 twist, 4150 chrome-molly steel, melonite coating
