First of all, I'm sorry if I'm exasperating you fellows! Please let me know if I am in danger of wearing out my welcome, as I won't be offended.

Now then is the Gamo Compact,
http://www.a-shield.ru/Catalog_oruzh...mo_Compact.htm

the same pistol as this PR-45,
http://www.a-shield.ru/Catalog_oruzh...Gamo_PR-45.htm

merely with the addition of target grips?

Or, are there a few other features to differentiating them?

What's different about this one? I sure like the fact that it looks a bit more compact!

PR-15
http://www.a-shield.ru/Catalog_oruzh...Gamo_PR-15.htm

I don't necessarily know if the two latter guns are available in your market, but I figured that you would be better aware of them.