Shop › HUX RAD PISTON 1/2X28 BLK HUX RAD PISTON 1/2X28 BLK $72.00 HUXWRX Safety Company RAD Piston, 17-4 Stainless Steel, Fits RAD 9/45, Nitride Finish, Black 1792 Quantity: Add To Cart Added! HUXWRX Safety Company RAD Piston, 17-4 Stainless Steel, Fits RAD 9/45, Nitride Finish, Black 1792