This sand cast brass triggerguard is copied directly from the triggerguard used on rifles made from 1803 to 1806. Later rifles use slightly different triggerguards.
Mounting lugs allow you to install this triggerguard with pins, front and rear, exactly like the original.
Overall length is 7-11/16", inside trigger bow is 1-11/16" long, and 13/16" deep.