Radical Defense is a Texas-based firearms manufacturer known for making AR-15s and 3-D printed suppressors. The company proudly announces its newest suppressor, the General Purpose Suppressor, or GPS for short. The GPS is a 3-D printed can that is fully auto-rated and is designed for calibers ranging from 7.62 to 8.6mm. The suppressor is made from Haynes 282, a nickel-based alloy, and weighs in at 23.5 oz.