The Huben Spare Parts for K1 · Diagram 2 · Receiver/Main Body brings together the key components responsible for your K1's structural integrity and core performance, giving owners direct access to the exact original parts needed to maintain, service, or restore this critical system — manufactured to the same exacting standards as the original air rifle, each part ensures a precise fit and seamless function with every installation, helping preserve the K1's structural reliability and consistent performance while preventing the wear-related issues that come from using generic or incompatible substitutes, so whether you're doing routine upkeep or a full restoration, your K1 keeps delivering the performance and reliability it was engineered for, shot after shot.