After scouring the sea for Ruger MK models, I’ve blended a few together. NotaGuntuber had a MKIV step that I flat-topped, added the barrel plug from DB’s MKCarbon jig and the MarkR by Pixel_Smoke/Insertmeow barrel shroud. Just got the barrel put together today. Function test hopefully this week if it’s not too frozen outside. Once I get this fine-tuned, I’ll drop the step, SolidWorks and STLs on the sea.
EDIT: I forgot to add that the grip frame is a MKIV 22/45 that I picked up from Wirthwein. Will be modeling that using the Kilo v2 version as the base.
So for this particular build, I have the Ruger 22/45 frame, Ruger bolt and printed pull ring, printed receiver, barrel plug, carbon fiber tube and the 22lr barrel liner inside that tube, stock Ruger magazine and printed 22/45 base plate.


When you say you have a mkiv kit, what parts are you referring to? I’m still working out what mkiv parts are interchangable with the mkiii and older frame/fcg wise.
I got them for killo’s 22/45 and it takes mkii or iii, iv can be used if you dremel them. From what I read, the main ones are the trigger, disconnector bar, and sear. So I printed those from the mkiii reference model that hunteroftheyellowdog posted.
Honestly I just found a iv kit on ebay, then printed the sear, disconnector, and trigger from a mkiii in pa6, and hoping that would work. If not, then I’ll dremel the iv parts. Or just give in and buy the volquartsen kit, cause the mk sub said it’s amazing.