John Boy: I hope the MK-1 shoots as good as it looks.
Enjoy and let us know how it shoots.

Killerv: Ditto's here!
I have WAY to many Ruger MK type pistols (thirty two of them at last count - including 22/45's!) - like you I have bought most all of them on the used market in the past and only at bargain prices.
And like you I shoot the heavy barreled models almost exclusively - most of the ones I shoot have optics and it is amazing how well (accurately) they shoot!
Gotta start thinning that herd soon and realizing some profits. Plan is to keep a couple of heavy barrels for myself - give one to each VarmintChild and VarmintGrandChild and sell the rest.
Long live the MK Ruger pistols.
Hold into the wind
VarmintGuy