5.7" Bullet Style Cal Antenna Mast for Jeep Wrangler JK JL Gladiator 2007-2021 This stylish yet functional Low Profile (5.7 inch) Black 50 Caliber Ammo Antenna. Made out of Aluminum Alloy + Copper with a hard Black anodized finish that will not chip, scratch or fade over time. 【One Size Fit All】With screw to fit it, you won't have to worry about finding the right bullet car antenna that fits your vehicle. 【Easy Installation】Install your radio antenna replacement in just a few minutes. Simply unscrew your old stock car radio antennas, select the appropriate screw for your vehicle, then screw on the car antenna bullet. .