I purchased an SR9 (stainless slide) in January and a RAP in February. Both on sale with the RAP being $30 more. I also have a RAP compact. Haven’t shot them much but like all 3. The SR and RAP seem similar in size with the RAP feeling a little heavier. SR has a flatter grip but I put Hogue grip sleeves on my pistols so they don’t feel so different. The RAP has very smooth mechanicals - even smoother than my G45. All 3 Rugers shoot reliably and are more accurate than I am. Put Truglo TFX sights on the SR9.