Sig Sauer Grip Module, Fits Sig P365 X-Macro/XL Without Manual Safety, Matte Finish, Coyote 8901181 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.