STERN DEF AR15 9MM 8.5" BBLEnhance your AR 15 platform with the Stern Defense 8. 5" 9mm Barrel. This precision engineered barrel is designed to deliver exceptional accuracy and performance in a compact package. Crafted from 4150 chrome moly steel with a durable melonite coating, it offers excellent corrosion resistance and longevity. The 1: 10 twist rate provides optimal stabilization for 9mm projectiles, ensuring consistent accuracy. Every Stern Defense barrel features a
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