Smith & Wesson Frame Size ?

[Kevan]

Would any Smith & Wesson owners/collectors out there happen to know what the frame size might be for an old S&W Mod. 53 22 Jet ?
I'd like to get a newer set of grips for it, but I'm not sure if its a K/L or an N frame.
Any help will be greatly appreciated.

 

[daBear]

30 seconds on Google revealed K frame..
dB

 

[Master-G]

Yup, square butt, too.

 

[Kevan]

Thanks fellas...I googled it yesterday before I posted the question and found the frame size for every other Smith made except a 53.
Your responses are most appreciated.