Gemtech Aurora II Features The Gemtech Aurora-II is an update of the Fighter Pilot s favorite wipe suppressor. Gemtech s engineers created the smallest lightest can on the market. The Aurora-II is threaded on both ends making it compatible with Metric and Standard thread pitches. The Aurora-II is made from Military Grade 70-75T6 aluminum with the internals composed of 8 neoprene wipes and 3 petroleum jelly-filled spacer baffles. Because it weighs 3.5 oz. it does not require a Nielsen device. The Gemtech Aurora-II cannot be used with hollow point or expanding ammunition. These types of bullets can cause catastrophic damage to the suppressor and possible injuries Gemtech Aurora II Specifications Manufacturer: Gemtech Manufacturer Part #: 12123 Model: Aurora II Type: Suppressor Size: 1 Diameter Caliber: 9mm Barrel Length: 3.4 Color: Black Description: Pistol Suppressor Manufacturer Wt: 3.5oz Material: 7075 Aluminum 1/2-28 or M13.5x1 LH Thread at Muzzle 7075-T6 Aluminum construction MIL-A-8625 Type II Class 2 Black Anodized finish