Deciding on which holster to buy for a Glock 19 with either TLR7A or surefire x300

I already have a x300 to pair with my Glock 19 with Holosun 507 or 17, however just wanted to get your opinion if I should put a TLR7A on the 19 instead to decrease the length.Also, anyone care to share their experiences with tier1 , LAS, and the new trex sidecar?Mainly for appendix but I do want the option of 4 o’clock carry.Any recommendations would be greatly appreciated! via /r/CCW https://ift.tt/3nofEai