There was a thread about Model 17's or 48's about a month ago where someone commented about questionable originality of some Colt Diamondback or Trooper III 22lr combo guns coming out of Florida, Possably Orlando or Tampa?

I am trying to find out how to identify such a gun.
Any info or links would be helpful.
Thanks.

I have never heard of any Colt DA 22s with two cylinders. The problem is you need to bore the barrel for the slight larger 22 Mag to avoid a high pressure situation so fitting a 22 mag cylinder to a 22 LR gun is a bad idea.

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back in the day, colt made mk-3 troopers in both 22lr and 22 mag although i never saw a combo. shouldn't be hard to fit a lr cyl. to a 22 mag gun though. colt letter would tell you if factory but their letters are more expensive that the smith ones.

Well,I don't know about the fakes,but Colt DID make the Trooper Mark III with both .22LR and .22WMR cylinders available in combos by special order. And yes,that's a Ruger bag.



f.t.

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Thank you for the replies,

I have read alot of comments in the past regarding the subject of converting a 22lr to 22 mag with about the same degreee of difference in opinion.
Some say the added pressure is OK in a lowly rimfire, some say no.

Putting that aside for now my focus is the originility of a Trooper III combo.
The one in question has a 22LR marked barrel with a spare 22 mag cylinder.
No documentation, just a factory box.
I found it bizarre they would use the smaller barrel.
Perhaps fat Tom can shed some light as to what barrel markings such a gun might have had?

I do recall a member posting that alot of such guns were of dubiouse origin and were born in Fl.
The onwer of the gun claims he bought it used and never shot the spare cylinder.

Would it make sense someone might purchase 22 mag guns and then add a 22lr cylinder ?
The ease of swapping cylinders in a SA gun makes sense but on a modern DA revolver seems more trouble than its worth.

Don't know how real it was but there was a blue 4" Trooper MKIII on GunBroker a few weeks ago with both cylinders...sold in the $860 area I think...

Bob