RugerSociety.com

Ok, I seek the knowledge of the all knowing ruger collectors community.
I just picked this up (very reasonable). I can’t pass up anything unique.
It has “RUGER TEST 10” on the receiver, but I don’t think it’s a ruger test gun, likely a custom shop. But given its age, it might have been done in the 60’s?
Here’s what I THINK I know:
A54 frame (chrome plated I think)
Looks like the original barrel, but the receiver is aluminum and so is the barrel sleeve.
Walnut grips
Micro rear sight
Modified front sight
All stock internals
So, I’m hoping one of you might recognize this, or the work.
It’s entirely possible it was built by a custom shop, or a talented individual with access to the right machinery.
Either way, it’s pretty cool in my book, but any help would be appreciated.
As usual, thank you for wading this far down!

What model would this be considered? Minus the chrome? MK-678G, KMK?

So what are the rules on these odd marked guns? For example, if a guy had a Mk1 that said X11 and had no other markings, is it ok to own? The gun was transferred through an FFL dealer and the ATF even called about it. Dealer responded that it was a prototype and that was that.

Thanks for any info. Would hate to tell that guy he needs to destroy it.

TomD

There are a lot of guns out there without a serial number.
Beginning in 1969, newly manufactured guns had to have a serial number. For individual companies, those serial numbers had to be unique to the various series that they manufactured.
Chet15

Thanks for the perspective, Chad.