Combat Armory Manufacturing AR9 4.5" 9mm 9x19 1:10 1/2x28 Barrel
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 28
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
