I-20 Hop Up Cylinder Retaining Ring C-Clip (103,109,124,127,558)

This steel I-20 c-clip fits multiple KWA models, and appears on respective diagrams as M11A1 part 103, KMP9 part 109, Vector part 522, Skorpion part 124, LM4 part 127E, and HK45 part 332.