This Sig Sauer P320 X5 Full Size Grip Module is a performance-oriented factory assembly finished in a black polymer for Fire Control Units without a manual safety. It features the signature X-Series ergonomics, including an extended beavertail and a high-undercut trigger guard, and comes fully equipped with a removable extended magwell (funnel) and an internal grip weight. The "Medium" circumference frame is specifically designed for 4.7-inch or 5-inch slides, providing maximum stability and faster reload capabilities for competitive shooting. This assembly is ready for use with a pre-installed, reversible magazine catch and is compatible with 17-round or 21-round magazines equipped with X-Series basepads. Sig Sauer P320 X5 9/40/357 Full Size Medium Grip Weight Funnel Black Pistol Grip Module Assembly GRIP-X5-F-943-M-BLK