TruSight Airsoft - Tru-Hop High Performance Hop-Up Bucking & Rubber Kit is a set for replacing your Weapons existing Hop-Up Bucking Unit and Hop-Up Rubber with a higher quality, and better performing set to boost performance. The Tru-Hop is constructed from high strength polymers which can operate in a huge range of temperatures, ranging from -50c to 230c with the exact same results, and can withstand thousands of rounds. The Tru-Hop is a High Performance Hop-Up Setup, engineered to boost range and accuracy by maximising the surface area of the contact patch. Range and Accuracy is improved because of the higher efficiency design. Accuracy is improved by the special concave design of the contact patch, which aligns BBs during Firing. This is the perfect purchase for those Airsoft Skirmishers who love to tech their rifle for maximum performance, and is best suited to heavy weight BB setups, such as those which use 0.30g BBs and above.