X-Grip Mag Spacer — S&W M&P Full-Size to Compact (9mm/.40/.357)

Description

The X-Grip Mag Spacer adapts full-size Smith & Wesson M&P magazines for reliable use in the compact M&P platform. It is designed for the S&W M&P 9/40 compact and supports 9mm, .40 S&W and .357 SIG magazine compatibility as specified by the manufacturer. The spacer integrates with the magazine body to increase carried capacity while preserving the pistol’s compact grip profile when needed. Installation is tool-free and the spacer secures over the magazine with a snap or interlocking friction fit.

Key Specifications

• Fits S&W M&P 9/40 Compact.
• Compatible with full-size magazines of 15 or 17 rounds, as specified.
• Caliber compatibility listed as 9mm / .40 S&W / .357 SIG.
• Capacity increase of +5 additional rounds when used with the listed full-size magazines.
• Installation requires no tools.
• Attachment method is a snap or interlocking friction fit over the magazine body.
• Product type specified as a Magazine Grip Sleeve.
• Model name listed as Mag Spacer.
• Color is specified as Black.
• Manufacturer notes durability under extreme environmental conditions to -55°F.

This mag spacer provides a practical, low-profile solution for carrying or deploying full-size M&P magazines in a compact platform. Its tool-free fit and OEM-style design keep handling predictable while adding five rounds of capacity when the full-size magazine is seated. For owners seeking a reversible, serviceable adapter that integrates cleanly with the pistol’s ergonomics, the X-Grip Mag Spacer is a straightforward option.