The Leofoto GMC-03 is a fixed mounting solution designed for rangefinders, featuring a clamping-style design with an adjustable grip range of 30–50mm (1.18–1.97 in) to accommodate a variety of devices. Its three inner contact surfaces are lined with silicone pads to protect equipment during use. The base is compatible with the Arca-Swiss dovetail standard and includes both 3/8” and 1/4” threaded holes for direct installation on tripods or tripod heads. Arri-style accessory holes on the front, back, and sides allow for the attachment of additional gear, such as smartphones, using compatible arms. Made from 6061 aluminum alloy, the GMC-03 weighs 180 grams (6.35 oz), providing a durable yet lightweight mounting option.