I own both guns. They're nice shooting guns and either would be excellent for teaching kids.
The M&P seems to be made out of 'pot metal' but has held up quite well and is a fun little gun to shoot. Mine has several thousand rounds through it. Take down and reassembly are easy. It is made by Walther for S&W.
The Browning 1911-22 is also a fun little shooter. It is about 80 percent size of a normal 1911 and the internals are similar as is take down. It is a much higher quality than the M&P in my opinion.
I'd recommend either for range shooting with children. Both guns have been completely reliable and have never malfunctioned. I use primarily CCI Blazer or Federal bulk pack ammo when I shoot them.
Last edited by JWT; January 9, 2013 at 10:26 AM.