Dimensionally, the P210 Carry is basically a twin for the Commander-size 1911, as can be seen in this photo of the test gun side-by side with my old Para Ordnance "Gun Blog Nine" LTC.
The SIG holds 8+1 rounds of 9x19mm, typical of classic single-stack nines, while the Wilson ETM mags in the Para will hold ten rounds (and work reliably with all manner of ammunition, unlike the classic nine-round Colt 9mm magazines.)
Think is, these are limited in capacity by the fact that they're true single stack magazines in metal-framed pistols with separately-attached grip panels.
There are a host of modern polymer-frame pistols that are just as slender and use stagger-stack magazines with as much as half again the capacity.
It was the time spent reviewing the P210 and thinking about recent experiences with pistols like the Shield Plus and the P365 that made me wonder...is the traditional true single-stack kind of a dying breed? An anachronism for lovers of bygone blasters?
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