Mischief Machine COMMANDER P365XL Aluminum Grip ModuleMischief Machine COMMANDER P365XL Aluminum Grip Module Mag release not included SIG SAUER P365XL ALUMINUM GRIP MODULE WITH GRIP PANELS AND BACKSTRAPS Not compatible with OEM holsters, our 1913 rail is larger than the OEM proprietary rail. XL X IS THE SAME SIZE AS A STANDARD XL GRIP ( ALSO REFERED TO AS THE X GRIP) USES 12 ROUND FLUSH OR 15 ROUND EXTENDED MAGS Materials: Grip Module Body: 7075 T6 aluminum, Coating: Hardcoat anodize Recoil Lug: 4140