Originally Posted By Matthew_Q:
There's a single stack M&P??
Not a true single stack; the magazine is like 1-1/2 cartridges wide.
The Shield’s magazine isn’t a true single column magazine—in fact, it is about a cartridge-and-a-half wide, except where it narrows at the top. I spoke to one of the engineers who told me they didn’t go with a true single column magazine to avoid issues with rim lock. This slightly wider magazine, however, allows for a little more capacity in a pistol that is a mere 4.6-inches tall.
Kinda reminds me of the 45GAP