Sure, the 29 Classic or another full barrel underlug gun like 586/686 won't fit into the Bianchi 5 BH(L) series for standard N- or L-frame holsters. As well as won't the M 617 fit into standard K-frame holsters since the holster were wet molded to the excact contours of the excact model.
I've got an inexpensive Triple K holster for my 4" 617 (I think its for an L-frame, actually) and my 4" M-27 fits in it, too, although it's pretty snug. Even the thumbbreak works, believe it or not. I got it from Midway, a couple of years ago, they probably still make it. While it's not ideal, it is functional, and moreover, it's not ballistic nylon. It's not a bad holster for the $60-70 I paid for it.
You can roll a turd in peanuts, dip it in chocolate, and it still ain't no damn Baby Ruth.
![[Linked Image from i.imgur.com]](https://i.imgur.com/3C5VZSW.jpg)
