Got the 17 A target sight to put on my Sharps rifle it took no time to take out the old sight and put the 17A back in place using a brass hammer and drift punch. The inserts are good just not the inserts that I like. But very good for puting lead on paper or steel at long range I am retired Army SFC, A member of SASS,with some gunsmithing experince.
Pros: ease to put on
Cons: not the inserts that I like
This review was written in the old system and had content requirements that are different than reviews written today.