Let the building commence!

I have 2 BCA uppers on printed lowers. They work fine. They are heavy. LRBHO (last round bolt hold open) needs a special 22lr replacement if you use a standard AR lower design. deAR22, HD22, EZ22 lowers should all work if memory serves me.

Getting used to Lemmy and lost the private message that was sent yesterday (12/6).

Anyway, message again if you get this.

Current progress is seeing about fitting a mkiv barrel to the printed receiver and updating the few versions I’m working on in solidworks. Hope to have something up by the end of the year. Anytime that has mkiv parts and wants to help out, let me know.

Waiting for my Colt Mustang II from EGP. Magazine arrived today.

Got it fully assembled, function test successful. I’ll be documenting and getting files assembled this weekend to take sailing.

Next steps are to disassemble the frame and get it modeled.

I was thinking it looked Glocked. Haha. Working on an under barrel piccatiny for it.

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.

The serialized part is the receiver. BOM and documentation will be included once I get things ironed out. Patience grasshoppers. 😁

Depends. Bolts are about $20-30. Frame internals are about $35-45 (MKIV). Finding MKIII and older internals is expensive as there seems to be only Volquartsen etc available.

The frame at the moment is stock Ruger MKIV 22/45. I’ll be going over the model in Kilo’s version as it’s 22/45 style, but for MKIII and older. I plan to convert it to a MKIV.