I wanted to know if the speedway magwell that Southpaw offers is legal for USPSA (production) and IDPA (stock service pistol). I'm going to have it done to my glock 35 for USPSA (limited) but a friend wanted to get it done to his glock 34. I know that it is an internal mod. and that it does keep the factory shape, so what is it legal or not legal?
Thanks.