Applicability: 92 FS - 9mm series and CX4 Storm 9mm with 92 magazine adapter.Capacity: 20CX4 with 90 series Magazine Well Insert/Magazine Release, 92FS, 92D, 92F, 92G, 92 Brigadier, 92 Elite/EliteIA/Elite II, 92G-SD, 92 Combat, 92 Combat Combo, 92 Billennium, 92 Stock, 92 Steel I, 92 Deluxe M9A1, M9, 92A1, 90-Two in 9MM, 92 Vertec (ALL), 93R Will fit in 92 FS Compact Inox Type L, 92FS Type L, 92FS Compact Carry Type L, 92SB Compact but will extend below the base of the grip.