The KWA E-10 bucking fits most KWA pistols and some SMGs. Occasional replacement will help restore accuracy and prevent jamming. Ball bearing, when needed, is sold separately. On respective diagrams, the bucking appears as M-Series part 14, M9 part 33, M93R II part 39, ATP/ATP Auto part 34, M11A1 NS2 part 38, M226 part37, M1911 MK Series and M1911A1 part 87, kz.75 part 29, KMP9 part 88, and TT-33 part 83.
