50° HU Transformers bucking for GBB TM / WE / KJW replicas
High-quality Hop-Up bucking with a hardness level of 55°, designed for Tokyo Marui / WE / KJW replicas and VSR-10 replicas. The set also includes a special ring to improve tightness. The buckings special design and the curling element makes the BB's trajectory more precise.
