[john walker's workshop]

it broke low, near the case, but it appears you have a reasonable amount protruding from the case, so you can get a grip on it in a few different ways. the short stud removal really should be done by someone who is experienced, or you can blow the one chance of an easy removal and end up having to drill, or EDM the remains. do all the lowers at the same time. plenty of info here in the archives. use an oxy/acetylene setup to heat the case. lesser flames take bloody forever to loosen the loctite. sometimes you get lucky and most or all of the studs come out without any heat, but don't count on it.