Samson Manufacturing's one-piece, no-gunsmithing magazine well brings even more control to Smith & Wesson's M&P Shield. You will be able to establish a full firing grip which increases your control for rapid shot recovery. Your expended magazines will now be allowed to drop-free without you having to adjust your grip. Beveling on the base of the magwell makes reloads quicker and fumble free. More comfortable, easier to shoot and easier to reload. What more could you ask for? Notes:Works with factory 8 round magazines or Samson +1 magazine extension Features6061-T6 Aluminum Construction Beveled magwell cuts reload timesThe only no-gunsmithing magwell for S&W ShieldExtended finger groove for increased control Allows magazine to drop freely