Fifty seven inches”. So I took a caliber to my BCGs and all measured 1.fifty seven inches. So I got to serious about that and decided to file down the trigger lock bar ever so a little. Now I am able to set the gun with each other! I did https://rarebreedfrttrigger13355.ourcodeblog.com/36982297/rare-breed-frt-trigger-no-further-a-mystery