If you plan to tote the Glock 17 9x19mm for target match use or for range training, I'd look at the polymer Blackhawk SERPA holster(s). They sell a version that does not have the level II security features.
The holster can be adjusted for angle/cant & carry style(high ride/FBI/crossdraw).
Blade-tech, Fobus, COM Holsters, Kramer, Safariland also sell target/match rigs.
www.Safariland.com www.COMholsters.com www.Blade-tech.com www.Blackhawk.com www.Galcogunleather.com www.Mitchrosen.com