Welcome! You can post your question either under this heading OR in the Defensive Carry Guns Section.I would have to say that low jack is good to have on a vehicle. I mean why risk yourself like that unless you have to? I agree that if you are still in the vehicle and they try to enter your vehicle with you in it then by all means protect yourself. However if you lowjack which will track your car if it is stolen all you have to do is report it and the company tells the police the current location of your vehicle. If however on the other hand your life is in danger then yes I think you should.
Unrelated question: I have a question but am not sure where to click to post this question. Any help would be helpful... trying to ask a question about the glock 17... buying one soon and the price for a glock 17 gen 3 is 599 and to me that sounds steep even though it is brand new and considering there is a newer model which is the glock 17 gen 4 out?