Hey Stan,

You have a good eye! It's just as Ted and Miller said. When you cock this gun the rear trigger moves backwards till it almost touches the trigger guard. Then when you close the breech the rear trigger advances. I can personally confirm that the rear trigger works!
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As for the other gun, the quick answer is that it's a V model Darne and a fundamentally different design in practically everthing except they both have sliding breech block activated by a top lever. I just checked my 1970-vintage R-15 and found no movement at all when moving the breech block forward or back.

Cheers,

Bill

Last edited by billwolfe; 02/03/18 09:41 PM.