SP-101 vs. GP-100 Newbie question??

[Big Dog Dad]

I've been a S&W fan for many, many years so I'm new to the world of Ruger DA revolvers. Can someone give a quick breakdown of both models if I was looking at a SS 4" 357 with adjustable sights . In looking at the Ruger website, it looks like a K frame vs. N frame in the S&W world. Any other notable differences other than weight and frame size? Thanks and sorry for the beginners question, but you've got to start somewhere, right?

-=BDD=-

 

[rammerjammer]

SP101- 5 shot unless 22LR or 327 Mag, smaller and meant for concealed carry, fixed sights

GP100- 6 shot, large frame revolver, and can be had with adjustable sights.

There are other differences but those are the major differences.

 

[gramps]

BDD, welcome to the forum. The main difference is the weight. The GP is heaviest with a 6 shot cylinder, whereas the SP is a 5 shot cylinder, and is lighter. I have a SP(3 inch barrel non-adjustable sights) now, and had a GP with adjustable sights, and 4 inch barrel that I sold (drat it). Both are shooters. SP's with the 4 inch barrel have adjustable sights. You will enjoy either. I am supposing that you will be getting them in .357 magnum, though they can be had in .327 Federal also.
gramps

 

[hittman]

Redhawk = N Frame size

GP100 = L Frame size

Security/Service/Speed Six = K Frame size

SP101 = Colt Detective size ~ larger than a J Frame