Combat Armory AR9 4.5" 9mm 9x19 1:10 1/2x36 Barrel 416 Stainless Steel Dark Earth

Combat Armory Manufacturing AR9 4.5" 9mm 9x19 1:10 1/2x36 Barrel in Dark Earth Barrel Coating: Gold Titanium Nitrite Barrel Contour: Medium Barrel Length: 4 .5 Barrel Material: 416R Stainless Steel Caliber Gauge .: 9MM 9x19 Feed Ramps: Polished Gas System:: Blow Back Thread Pattern: 1/2 X 36 Twist Rate 1:10 No indicator pin simple install just secure with barrel nut Combat Armory machinist take pride in delivering the very best for our customers used by Military, Police, and Firearms enthusiasts