I've back-ordered them before - and thanks for the help with the SKU #, 460V & XVR Magnum Man. They'll be in-stock before you know it. The small grips you displayed in your OP are actually N-frame boot grips - and they just cover the metal RB frame, leaving the back, bottom, & front straps exposed - too tiny. My Heritage 6.5" 24 had them - cute, but uncomfortable. The grips I have now on my UDRs, like the 60 Pro grips for the RB J-frames, are a deal - well worth the wait. They will be back in-stock - probably soon, too.
Of course, if you can't wait - Ahrends square conversion or retro target grips are nice, too - and really fit the hand quite well. They just look, scale-wise, a bit big for the N-frame snubbie:
Those grips are $60 in cocobolo + s/h from Kim Ahrends and may be in-stock at Brownells for the same price.
Stainz