The normal BMTH V2 has "Hook" velcro on the back side and "Loop" velcro on the inside. This will work on two belt systems that have loop on the inner belt and hook on the outer belt. (Ronin Tactics and LeadDevil USA are two belt examples they will work with). The *Reversed* BMTH V2 has "Loop" velcro on the outside and "Hook" velcro on the inside. This will work with two belt systems that have hook on the inner belt and loop on the outer belt. (GBRS and Eagle Industries are two examples of belts they work with).