Factory replacement for the P365-XMACRO grip module. It features a true 1913 accessory rail and three interchangeable backstraps (S, M, L) to ensure a proper fit for the user's hand. The medium backstrap comes preinstalled.Compatible with the 17-round P365-XMACRO magazine.Compatible with all P365 FCUs (Fire Control Unit) except manual safety versions.Specifications:Model: P365-XMACROBrand: SIG SAUERCaliber: 9mm LugerGrip Texture: StandardPistol Size: CompactManual Safety: NoMagazine Disconnect Compatible: NoColor: BlackGrip Material: Standard PolymerReversible Magazine Release: YesRemovable Grip Weight Compatible: NoInterchangeable Grip Panel: NoInterchangeable Backstrap: Yes