As mentioned in the summary, the Gen5 Glock 34 MOS is not compatible with this holster. Otherwise it seems like a rugged design like other 511 and blade-tech products. I do like the “open top” design allows for RMR type optics. The system should come with a thumb drive extension pad for men with medium or small hands. Without much experience on the system, I feel like the extension would lead to a more reliable draw stroke at speed.