A black aluminum mounting coupler for attaching equipment to a 28 mm TV spigot. It accommodates tube diameters from 45 to 50 mm and includes a safety split pin for the TV spigot. The coupler has a maximum working load limit of 250 kg with a 4-fold safety factor and a maximum BGV C1 load of 125 kg with an 8-fold safety factor. Its dimensions are 11 cm long, 5 cm wide, and 11.5 cm high, with a weight of 0.74 kg.