Charter Arms Ar7 Serial Numbers
I have to give the people at Charter Arms a real thumbs up. They never say die.

ArmaLite AR-7 Explorer; Charter Arms AR-7. When the AR-5 was adopted as the MA-1 but was not placed in issue due to the numbers of usable M4 and M6 survival. Charter Arms Serial Number Handguns: The Revolver Forum.
Eset Nod32 Antivirus 4 Gratis Per Sempre Grato on this page. Had a couple early ones years ago and even now have a vintage 3' gloss blue Bulldog. Stayed away from the Charco stuff. Now they are back and doing well especially in this economy. I'm shopping for a NIB Charter Arms stainless.44 Bulldog but the various postings of 'new'.44's show different grips, some with metal medallions on the rubber, some with just pressed medallions on the rubber; some with the name Bulldog Pug, some just Bulldog. Is there any reference out there that describes the differences in models via a timeline? I'm guessing changes were made as time moved on in the past 11 or 12 years since they have been back, and those changes can help date one of the new ones for me.
I'm aware of no relationship with Ruger and Charter Arms (which means little, I admit. Interstellar Rift Alpha 25 App. ) I heard Charter got started originally back in the days of VietNam when Smith and Wessons were in short supply supposedly. Original Charter snubbies might actually have pre-dated the Ruger Security Six although perhaps I'm all wet on that.
Of course, perhaps the Security Six got introduced when old Bill Senior saw a niche due to scalper prices on Smith and Wessons he decided he'd fill. I recall reading this, but am not sure rationally if there's any basis at all to it.
Especially with the snub noses that Charter was making. Military bought some snubbies but not very many in the scheme of things and don't think privately owned firearms were smuggled in by GIs to the same extent as WWII (plus military was much smaller and fewer troopies in the combat zones), especially after Gun Control Act of 1968. Only book I am aware of that's been written on Charter Arms only covered the first encarnation I believe and was called 'And Now Stainless' if I remember right.
It's long out of print and I periodically have trolled amazon.com, dealoz.com, abebooks.com, etc. Trying to find it and it's not available or priced for far more than I'd be willing to pay. In regards to the original question this book have no info on the recent production guns whatsoever. I had a charter arms bulldog back in the 80s. It really loved hardcast hand loads at about 850 fps.
It would rock you though. I heard a story once that it was the carry gun of choice for air marshalls as it carried a big knockdown punch and down loaded to about 600 fps wouldn't penetrate the skin of an aircraft.
I worked on air craft in the service and I think a well placed kick could penetrate the skin on some of them. They are really fun pistols.Nolthing really to worry about if you do penetrate the skin of a commerical airplane with a.357 or a.44 or two.