I understand why you put the links up for the OP and sugrested the seach. But as the site has grown maybe some of the new members have more info on sertain questions that have been asked beforehttps://www.indianagunowners.com/forums/handguns/26882-rock_island_1911_a.html
https://www.indianagunowners.com/forums/handguns/14333-just_bought_a_rock_island_1911_a1.html
Please try the search before making a new thread. I just looked at all your posts, and just about every one could have been answered with a quick search using the "search button" at the top of every screen.
BTW, Welcome to INGO