The Heresy Design™ 16.1″ 9MM Conversion Kit is the ultimate upgrade for Steyr® AUG® A3 M1 NATO Stock owners looking for caliber conversions. At the core of this conversion kit is a 16.1″ barrel equipped with a 3-lug suppressor mount and 1/2×28 threaded barrel with thread protector, and it uses a direct blowback operating system. The 41V50 barrel features an Isonite finish and a 1:10 rifling twist.
Shipping with the barrel, carrier group, and 9MM magazine, installation is quick and straightforward, requiring no modifications to your firearm—in under 90 seconds, you are ready to hit the range. This conversion kit allows you to smoothly switch calibers and shoot with minimal gas blowback. The kit features Isonite coated wear parts, Anodized Aluminum quad rails, and comes with a Limited lifetime warranty.
With suppressor compatibility, minimal gas blowback, and a smooth, direct blowback operating system, this conversion kit is perfect for tactical shooting, range days, or suppressed use. The complete kit weighs 3 lb. 2 oz.
