Barrel weight 20g, Length 50mm, Diameter - 7.5 mm Max. - with 6 added parallel cuts at the middle of the barrel.
These are custom barrel sets, based on the original Jazz Metal Front Loaded Soft Tip design.
This is the Ver. 3 of the original NYTRO custom design. This is a 20-gram version adding 5mm of length to the barrel. In addition, the grip area is 0.5mm slimmer than the previous versions - it is noticeably thinner when you hold it. The nose of the barrel has been redesigned, adding a sizeable groove for positive finger placement. This design further improves your control of the barrel with definitive finger placement.
A 4th experimental design was made, where 5 parallel cuts were used instead of 6. This version still has the original nose design, but it is 50mm long and 20g in weight along with the slimmer midsection. Only 5 sets were made.