I don't know about "long slide". I've got a stainless AMT, in 40. Bought it because I did not have a 40, so therefore needed one (y'all know how that works, right?). It's a little smaller than "commander" size. Full size grip with a 4" barrel (commander has 4 1/2"). They called it a "Commando".
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.