12 Round Magazine Upgrade Kit for M&P Shield Compact 22LR custom color tumbler 20oz made out of the same

made out of the same gasket material used by most German OEMs

use a wrench on the crack pulley to turn over the engine manually

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

The stock recessed knob is both at an awkward position hard to get ones hands into to generate the strength needed

• Unisex style

12 Round Magazine Upgrade Kit for M&P Shield Compact 22LR custom color tumbler 20oz made out of the sameThis 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