UNI-HOP AEG 70° Hop-Up Bucking Made from a unique NBR material. Inside it, there is an arrow-shaped protrusion responsible for the stabilization and spin of the BB.
About the NBR material: NBR material is nothing more than rubber, under the professional name Nitrile Butadiene Bucking. It is characterized by very high resistance to abrasion, as well as oils and greases.
Product features: - Unique, durable formulation. - An arrow-shaped protrusion stabilizing the BB inside the arms.
