BGS holsters features:
-BGs Malin holster is a passive retention holster designed for outside the waistband carry.   
-Precision made from the original 2 mm Kydex T and very versatile.
-Designed to also fit pistols with mounted suppressor height sights, slide mounted optics and barrel extensions.
-Features adjustable retention, using the two screws along the edge of the holster.
-Has an universal mounting hole pattern - holster will fit most of the popular attachments on the market (e.g. those produced by Blackhawk, Safariland, Blade-Tech, G-Code etc.)
-Comes with a low-profile belt loop.  

Rex Zero 1 + X300U: 
-Light bearing holster*. Will fit all variants of Rex Zero 1 (S, T, CP, TC) with a mounted Surefire X300U-A or X300U-B weapon light. When switching between different light models, the retention might need to be adjusted for a better fit.
 
*Light-bearing holsters will not work without the mounted light safely, since the retention would not be sufficient.