12 Round Magazine Upgrade Kit for M&P Shield Compact 22LR custom color tumbler 20oz We laser engrave and ship

We laser engrave and ship your one-of-a-kind tumbler fast

This is a solid Delrin (Acetal) transmission motor mount for SOHC (12-valve) 3

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They mount with a very slim profile and can be mounted underneath items or vertically behind or between furniture

12 Round Magazine Upgrade Kit for M&P Shield Compact 22LR custom color tumbler 20oz We laser engrave and shipThis upgrade kit provides the capability for the a single magazine of a M&P Shield Compact 22LR to increase from (10) to (12) without extending the outside of the magazine and with no loss of functionality such as the slide not staying back after the last round is fired. This retains the use of the stock spring. If one just wants a magazine to hold (11) for free, look at the picture regarding modifying the lower follower. The 3D comparison shows how