The Mirror Rail Double Groove Mount is a heavy-duty clamp-on antenna mount designed for larger round bars between 13mm and 30mm diameter — the double groove clamp provides a more secure grip on thicker mirror rails, roll bars, and roof bars compared to the single groove version. No drilling required. Accepts any antenna with a standard 3/8"x24 thread, with a built-in SO-239 (UHF-Female) socket for direct PL-259 coax connection. Ideal for CB radio, amateur radio, and PMR mobile antenna installations on vans, 4x4s, trucks, and vehicles with heavier-gauge rails. Key Features Double groove clamp — more secure grip on larger bars Fits round bars: 13–30mm diameter No drilling required 3/8"x24 thread — fits standard CB & amateur radio mobile antennas Built-in SO-239 (UHF-Female) coax socket Ideal for mirror rails, roll bars & roof bars Suitable for CB, amateur radio & PMR mobile installations Also available as a single groove version for 7–25mm bars Technical Specifications Type: Double groove mirror rail clamp mount Thread: 3/8"x24 Connector: SO-239 (UHF-Female) Bar diameter: 13–30mm
