This Magwell is for the M&P 2.0 COMPACT - Color Fill Line Blue
They do not work with Stock Magazine base plates. They should work with some Magwell compatible base plate extensions. But we have not checked all brands/companies. They do NOT work with the New style TTI Extensions.
They are designed to work with our +2 +6 extensions or the Med Pro MagBase Plate or the Low profile magbase.
Black Hard Anodized made from 6061 Aluminum
MADE IN THE USA!