AV Stumpfl AT64-SHIFT right extension with a length of 53 cm. This extension is designed for use with the AT64-SHIFT system and is supplied as a single piece. The manufacturer identifies the product as an AT64-SHIFT extension for the right side. Article number BFZ-FST/AT64S/0533R. The product has a gross and net weight of 1.0355 kg and is manufactured by AV Stumpfl.